* prototech/ticket/11241:
[ticket/11241] Retain button gradient when menu is active.
[ticket/11241] Fix the disappearing dropdown when responsive changes take effect
[ticket/11241] Add border to dropdown menu options.
[ticket/11241] Add events & var for extensions to dropdown.
[ticket/11241] Fix the dropdown in RTL languages.
[ticket/11241] Use DEFINE for the block.
[ticket/11241] Consolidate topic actions into "Topic tools" dropdown.
[ticket/11241] Add dropdown control button.
* Marc/ticket/11842:
[ticket/11842] Add functional test for creating group
[ticket/11842] Use avatar_data for obtaining driver that should be deleted
[ticket/11842] Use type map for updating avatar types in database
[ticket/11842] Add missing prefix for group id in avatar data
[ticket/11842] Use only new avatar type in user_delete function
[ticket/11842] Add migration file for updating avatar type in database
[ticket/11842] Replace outdated occurences of user and group avatar_type
[ticket/11842] Use group_id 0 and correct avatar name after creating group
* bantu/ticket/12056-develop:
[ticket/12056] group_user_attributes: Fix "Creating ... from empty value".
[ticket/12056] Fix "Call to undefined function ...\utf8_normalize_nfc()"
[ticket/12056] Fix "Call to undefined function ...\utf8_clean_string()"
[ticket/12056] Fix "Call to a member function trigger_event() on a non-object".
[ticket/12056] Fix "Call to undefined function phpbb\phpbb_get_plural_form()".
[ticket/12056] Fix "undefined function phpbb_pcre_utf8_support()".
[ticket/12056] validate_config_vars: Fix ".. undefined function utf8_strlen()"
[ticket/12056] validate_config_vars: Fix "Creating ... from empty value".
[ticket/12056] validate_range: Fix "Creating default object from empty value"
[ticket/12056] build_select: Fix "Creating default object from empty value"
[ticket/12056] h_radio test: Fix "Creating default object from empty value"
* prototech/ticket/11672:
[ticket/11672] Move the reapply_sid() call before meta_refresh() is called.
[ticket/11672] Remove duplicate $request global.
[ticket/11672] The json response call exits so the else is not necessary.
[ticket/11672] Remove the messages for lock/unlock/change topic type.
[ticket/11672] Clean up the logic in mcp_queue.php.
[ticket/11672] Remove some messages that were missed in mcp_queue.php.
[ticket/11672] Replace sprintf() usage with $user->lang().
[ticket/11672] Removed unnecessary text from alerts.
