AddOnQuietLogin

Better working functions in new version:

• Added keyboard shortcuts to the block string input box
• Press Enter to add a block string without clicking the Add button
• Press Shift+Enter to remove a block string without clicking the Remove button
• Press Esc to clear the input box and exit typing
• Input cursor now stays in the text box after adding or removing entries for rapid entry
• Input box automatically gains focus when the options panel is opened
• Added an instructional message above the input box explaining the keyboard shortcuts
• Improved options panel registration to safely support both modern Settings UI and classic Interface Options
• Preserved all original message suppression behavior while extending the options UI