* Fetch translations from Crowdin
* Support for showing and hiding indicator and navigation bar
* Refactored to use a view model
* Support defining helper bar items and support showing/hiding keyboard
* reorganized source files into separate logical files
* Moved mouse support to swift (except for delegate implementation), added support for enabling touch mouse in helper bar; reorganized swift source files
* Reorganized keyboard files; added the touch mouse messages to the RA localization files; use the RA notification system
* change keyboard letters to uppercase for clarity
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