Math Solver - Beta

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GUI:
- Changed a few descriptions to more simple terms.
- Fixed fractions having some issues.
- Added slight vibrate on button press
- Added more options to Settings
- Fixed keypad on phones of size 480x800
- Fixed smaller issues with drawing with negative numbers.

Core:
- Fixed some small issues with Sorting and simplifying
- Booleans when comparing the equation no longer show up in 'premade color'