Refine Game Design and Mechanics

I'd like to suggest fixing some bugs related to the game, such as a single appearing letter being highlighted yellow multiple times (See attached screenshot). This can lead to confusion and isn't in line with the actual wordle game. A few changes in the main game mechanics should fix the same. I would also like to add an optional button so it chooses random words from the dictionary every time and restarts the game.


- [x] Correct word color changing mechanism
- [x] Add a way to generate a new "random" wordle game