Added Config Button For Action Bar

[khanshoaib3]

Overview

• Added new button in the Accessibility Plus Configuration menu to toggle the action bar narration.
• The config.json file now resets itself when there is an error in the config.json file which causes crashes, like when adding new variables.

Changes

• Config.java = Added a variable ACTION_BAR_KEY. Added a resetData function that stores the default values of variables into config.json file. Added this method to get() function to prevent crash and reset data when that happens.
• ConfigGui.java = Added the actionBarButton to the config menu.
• ActionBarInject.java = Added if clause to narrate action bar if it is enabled.
• en_us.json = Added the translation key for action bar.