fix typo in preference key

app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java

@@ -229,7 +229,7 @@ class StatusBaseViewHolder extends RecyclerView.ViewHolder {
             }
         }
         SharedPreferences pm = PreferenceManager.getDefaultSharedPreferences(context);
-        Boolean isAlwayShowSensitive = pm.getBoolean("alwayShowSensitiveMedia", false);
+        Boolean isAlwayShowSensitive = pm.getBoolean("alwaysShowSensitiveMedia", false);
         if (sensitive && (!isAlwayShowSensitive)) {
             sensitiveMediaWarning.setVisibility(showingSensitive ? View.GONE : View.VISIBLE);
             sensitiveMediaShow.setVisibility(showingSensitive ? View.VISIBLE : View.GONE);

app/src/main/res/xml/preferences.xml

@@ -21,7 +21,7 @@
 
         <CheckBoxPreference
             android:defaultValue="false"
-            android:key="alwayShowSensitiveMedia"
+            android:key="alwaysShowSensitiveMedia"
             android:title="@string/pref_title_alway_show_sensitive_media" />
 
     </PreferenceCategory>