Version 1.2.3 - Added handling for extension-added title bar context menu items in prefs

Fixed

• The module always handled extension-added menu items properly but in cleaning up comments and labeling the prefs modules for easy searching I found that it wasn't accounted for in the preferences. Now such items can be added with the Add... button.
• As mentioned, the comments are cleaner and more uniform.
• Removed some try-catch blocks that Just Perfection feels are indicative of AI code.