[TMP] Force-disable "open at first unread" setting

This feature is really dangerous (i.e. often leads to broken timelines)
in combination with element-hq#5092.

Change-Id: Ib9c6b4e0e8cba19f438690c64195724a93735584

vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt

@@ -1025,7 +1025,8 @@ class VectorPreferences @Inject constructor(private val context: Context, privat
 
     // SC addition
     fun loadRoomAtFirstUnread(): Boolean {
-        return defaultPrefs.getBoolean(SETTINGS_OPEN_CHATS_AT_FIRST_UNREAD, false)
+        // https://github.com/vector-im/element-android/issues/5092
+        return false // defaultPrefs.getBoolean(SETTINGS_OPEN_CHATS_AT_FIRST_UNREAD, false)
     }
 
     // Element removed this, SC added it back (but this time, default to true)

vector/src/main/res/xml/vector_settings_labs.xml

@@ -35,6 +35,7 @@
     <!--android:title="@string/settings_labs_enable_send_voice" />-->
 
     <im.vector.app.core.preference.VectorSwitchPreference
+        android:enabled="false"
         android:defaultValue="false"
         android:key="SETTINGS_OPEN_CHATS_AT_FIRST_UNREAD"
         android:title="@string/settings_open_chats_at_first_unread"