fix audio attachments not opening in some cases (#1473)

app/src/main/java/com/keylesspalace/tusky/components/report/fragments/ReportStatusesFragment.kt

@@ -74,7 +74,7 @@ class ReportStatusesFragment : Fragment(), Injectable, AdapterHandler {
     override fun showMedia(v: View?, status: Status?, idx: Int) {
         status?.actionableStatus?.let { actionable ->
             when (actionable.attachments[idx].type) {
-                Attachment.Type.GIFV, Attachment.Type.VIDEO, Attachment.Type.IMAGE -> {
+                Attachment.Type.GIFV, Attachment.Type.VIDEO, Attachment.Type.IMAGE, Attachment.Type.AUDIO -> {
                     val attachments = AttachmentViewData.list(actionable)
                     val intent = ViewMediaActivity.newIntent(context, attachments,
                             idx)

app/src/main/java/com/keylesspalace/tusky/components/search/fragments/SearchStatusesFragment.kt

@@ -103,7 +103,7 @@ class SearchStatusesFragment : SearchFragment<Pair<Status, StatusViewData.Concre
     override fun onViewMedia(position: Int, attachmentIndex: Int, view: View?) {
         (adapter as? SearchStatusesAdapter)?.getItem(position)?.first?.actionableStatus?.let { actionable ->
             when (actionable.attachments[attachmentIndex].type) {
-                Attachment.Type.GIFV, Attachment.Type.VIDEO, Attachment.Type.IMAGE -> {
+                Attachment.Type.GIFV, Attachment.Type.VIDEO, Attachment.Type.IMAGE, Attachment.Type.AUDIO -> {
                     val attachments = AttachmentViewData.list(actionable)
                     val intent = ViewMediaActivity.newIntent(context, attachments,
                             attachmentIndex)

app/src/main/java/com/keylesspalace/tusky/fragment/AccountMediaFragment.kt

@@ -262,7 +262,8 @@ class AccountMediaFragment : BaseFragment(), RefreshableFragment, Injectable {
         when (items[currentIndex].attachment.type) {
             Attachment.Type.IMAGE,
             Attachment.Type.GIFV,
-            Attachment.Type.VIDEO -> {
+            Attachment.Type.VIDEO,
+            Attachment.Type.AUDIO -> {
                 val intent = ViewMediaActivity.newIntent(context, items, currentIndex)
                 if (view != null && activity != null) {
                     val url = items[currentIndex].attachment.url