Fix brakeman warning (#15870)

As far as I understand, the brakeman warning was a false-positive as
`content_tag` properly escapes untrusted HTML. Furthermore, the interpolated
string values are built from the “username” part of accounts, which is
restricted to a small subset of ASCII that precludes any XML entity or HTML
code.

This proposed change should be functionally equivalent to the current code,
however it is slightly more robust, it's more idiomatic, and Brakeman will
stop complaining about it.

app/views/admin/action_logs/_action_log.html.haml

@@ -4,6 +4,6 @@
       = image_tag action_log.account.avatar.url(:original), alt: '', width: 40, height: 40, class: 'avatar'
     .log-entry__content
       .log-entry__title
-        = t("admin.action_logs.actions.#{action_log.action}_#{action_log.target_type.underscore}", name: content_tag(:span, action_log.account.username, class: 'username'), target: content_tag(:span, log_target(action_log), class: 'target')).html_safe
+        = t("admin.action_logs.actions.#{action_log.action}_#{action_log.target_type.underscore}_html", name: content_tag(:span, action_log.account.username, class: 'username'), target: content_tag(:span, log_target(action_log), class: 'target'))
       .log-entry__timestamp
         %time.formatted{ datetime: action_log.created_at.iso8601 }

app/views/admin/reports/_action_log.html.haml

@@ -1,6 +1,6 @@
 .speech-bubble.positive
   .speech-bubble__bubble
-    = t("admin.action_logs.actions.#{action_log.action}_#{action_log.target_type.underscore}", name: content_tag(:span, action_log.account.username, class: 'username'), target: content_tag(:span, log_target(action_log), class: 'target')).html_safe
+    = t("admin.action_logs.actions.#{action_log.action}_#{action_log.target_type.underscore}_html", name: content_tag(:span, action_log.account.username, class: 'username'), target: content_tag(:span, log_target(action_log), class: 'target'))
   .speech-bubble__owner
     = admin_account_link_to(action_log.account)
     %time.formatted{ datetime: action_log.created_at.iso8601 }= l action_log.created_at

config/locales/en.yml

@@ -261,46 +261,46 @@ en:
         update_domain_block: Update Domain Block
         update_status: Update Status
       actions:
-        assigned_to_self_report: "%{name} assigned report %{target} to themselves"
-        change_email_user: "%{name} changed the e-mail address of user %{target}"
-        confirm_user: "%{name} confirmed e-mail address of user %{target}"
-        create_account_warning: "%{name} sent a warning to %{target}"
-        create_announcement: "%{name} created new announcement %{target}"
-        create_custom_emoji: "%{name} uploaded new emoji %{target}"
-        create_domain_allow: "%{name} allowed federation with domain %{target}"
-        create_domain_block: "%{name} blocked domain %{target}"
-        create_email_domain_block: "%{name} blocked e-mail domain %{target}"
-        create_ip_block: "%{name} created rule for IP %{target}"
-        demote_user: "%{name} demoted user %{target}"
-        destroy_announcement: "%{name} deleted announcement %{target}"
-        destroy_custom_emoji: "%{name} destroyed emoji %{target}"
-        destroy_domain_allow: "%{name} disallowed federation with domain %{target}"
-        destroy_domain_block: "%{name} unblocked domain %{target}"
-        destroy_email_domain_block: "%{name} unblocked e-mail domain %{target}"
-        destroy_ip_block: "%{name} deleted rule for IP %{target}"
-        destroy_status: "%{name} removed status by %{target}"
-        disable_2fa_user: "%{name} disabled two factor requirement for user %{target}"
-        disable_custom_emoji: "%{name} disabled emoji %{target}"
-        disable_user: "%{name} disabled login for user %{target}"
-        enable_custom_emoji: "%{name} enabled emoji %{target}"
-        enable_user: "%{name} enabled login for user %{target}"
-        memorialize_account: "%{name} turned %{target}'s account into a memoriam page"
-        promote_user: "%{name} promoted user %{target}"
-        remove_avatar_user: "%{name} removed %{target}'s avatar"
-        reopen_report: "%{name} reopened report %{target}"
-        reset_password_user: "%{name} reset password of user %{target}"
-        resolve_report: "%{name} resolved report %{target}"
-        sensitive_account: "%{name} marked %{target}'s media as sensitive"
-        silence_account: "%{name} silenced %{target}'s account"
-        suspend_account: "%{name} suspended %{target}'s account"
-        unassigned_report: "%{name} unassigned report %{target}"
-        unsensitive_account: "%{name} unmarked %{target}'s media as sensitive"
-        unsilence_account: "%{name} unsilenced %{target}'s account"
-        unsuspend_account: "%{name} unsuspended %{target}'s account"
-        update_announcement: "%{name} updated announcement %{target}"
-        update_custom_emoji: "%{name} updated emoji %{target}"
-        update_domain_block: "%{name} updated domain block for %{target}"
-        update_status: "%{name} updated status by %{target}"
+        assigned_to_self_report_html: "%{name} assigned report %{target} to themselves"
+        change_email_user_html: "%{name} changed the e-mail address of user %{target}"
+        confirm_user_html: "%{name} confirmed e-mail address of user %{target}"
+        create_account_warning_html: "%{name} sent a warning to %{target}"
+        create_announcement_html: "%{name} created new announcement %{target}"
+        create_custom_emoji_html: "%{name} uploaded new emoji %{target}"
+        create_domain_allow_html: "%{name} allowed federation with domain %{target}"
+        create_domain_block_html: "%{name} blocked domain %{target}"
+        create_email_domain_block_html: "%{name} blocked e-mail domain %{target}"
+        create_ip_block_html: "%{name} created rule for IP %{target}"
+        demote_user_html: "%{name} demoted user %{target}"
+        destroy_announcement_html: "%{name} deleted announcement %{target}"
+        destroy_custom_emoji_html: "%{name} destroyed emoji %{target}"
+        destroy_domain_allow_html: "%{name} disallowed federation with domain %{target}"
+        destroy_domain_block_html: "%{name} unblocked domain %{target}"
+        destroy_email_domain_block_html: "%{name} unblocked e-mail domain %{target}"
+        destroy_ip_block_html: "%{name} deleted rule for IP %{target}"
+        destroy_status_html: "%{name} removed status by %{target}"
+        disable_2fa_user_html: "%{name} disabled two factor requirement for user %{target}"
+        disable_custom_emoji_html: "%{name} disabled emoji %{target}"
+        disable_user_html: "%{name} disabled login for user %{target}"
+        enable_custom_emoji_html: "%{name} enabled emoji %{target}"
+        enable_user_html: "%{name} enabled login for user %{target}"
+        memorialize_account_html: "%{name} turned %{target}'s account into a memoriam page"
+        promote_user_html: "%{name} promoted user %{target}"
+        remove_avatar_user_html: "%{name} removed %{target}'s avatar"
+        reopen_report_html: "%{name} reopened report %{target}"
+        reset_password_user_html: "%{name} reset password of user %{target}"
+        resolve_report_html: "%{name} resolved report %{target}"
+        sensitive_account_html: "%{name} marked %{target}'s media as sensitive"
+        silence_account_html: "%{name} silenced %{target}'s account"
+        suspend_account_html: "%{name} suspended %{target}'s account"
+        unassigned_report_html: "%{name} unassigned report %{target}"
+        unsensitive_account_html: "%{name} unmarked %{target}'s media as sensitive"
+        unsilence_account_html: "%{name} unsilenced %{target}'s account"
+        unsuspend_account_html: "%{name} unsuspended %{target}'s account"
+        update_announcement_html: "%{name} updated announcement %{target}"
+        update_custom_emoji_html: "%{name} updated emoji %{target}"
+        update_domain_block_html: "%{name} updated domain block for %{target}"
+        update_status_html: "%{name} updated status by %{target}"
       deleted_status: "(deleted status)"
       empty: No logs found.
       filter_by_action: Filter by action