Fixed bug where next buttons were not redirecting to the right level
First time checker becomes sustainable it scrolls to Check section
Merged all routes for checker levels into one and added history for levels to allow resuming to a specific level and prevent skipping levels
Added fade effect to flashing colors in Sudoku
Woops, forgot a file for previous commit
Added button for toggling sudoku overlay and improved toggling hitbox on sides of thetable
Removed StaticPages and added Site controller with corresponding views and client side files
Added header
Added footer