KeyMapper - update 1.1

Added a couple of features and fixes

• Added a key picker  button next to "To" and "From" that opens a gui with key categories (Letters, Function, Numpad, System, Mouse, Symbols/OEM) so you can map a key even if it's missing from your keyboard. thanks to @skyfroggyy for the idea !
• Removed Reset button -> Capture now lets you capture infinite times so you don't need to reset anything
• Fixed a bug where pressing Escape did nothing
• Added a couple of missing translations (tooltip when capturing keys)