[OpenID] Added synchronization button and corresponding action

UI:
- "Delete" area is now "Actions" area
- Updated themes to better reflect the changes

Routes:
- index.php?action=finishsyncopenid => finishsyncopenid

Translations:
- Updated OpenID translation files
- Updated OpenID POT file

Versioning:
- Bump OpenID minor version
- Bump GS patch version

Why would have labeling the Synchronize button of Sync been of bad taste? - answered by XRevan86:

In "synchronise" "ch" is a digraph meaning /k/ (actually /x/ turned into /k/ in English but whatever).
So… not separate letters.
It's like "ph" in "alphabet", or "sh" in "sheep", or "ch" in "chop" -- "ch" can mean a whole variety of sounds.

lib/framework.php

@@ -22,7 +22,7 @@ if (!defined('GNUSOCIAL')) { exit(1); }
 define('GNUSOCIAL_ENGINE', 'GNU social');
 define('GNUSOCIAL_ENGINE_URL', 'https://www.gnu.org/software/social/');
 
-define('GNUSOCIAL_BASE_VERSION', '1.19.2');
+define('GNUSOCIAL_BASE_VERSION', '1.19.3');
 define('GNUSOCIAL_LIFECYCLE', 'rc0'); // 'dev', 'alpha[0-9]+', 'beta[0-9]+', 'rc[0-9]+', 'release'
 
 define('GNUSOCIAL_VERSION', GNUSOCIAL_BASE_VERSION . '-' . GNUSOCIAL_LIFECYCLE);