more QoL features and guidance!!

• date traversal

you can now move between puzzles from previous dates.

• added undo feature

you can now undo your last move, but only one undo at a time.

• added extra guidance through dialogue

if you are a new user, it shows you where the editor and tutorial are (for clarity)

• added confirm submission

you now have to confirm the submission of your solution, so you don’t accidently submit a bad solution.

• added solution history

if you solved the puzzle, and decided to reset, you can now always go back to the best solution you previously had.

• editor QoL

you now have to confirm your upload. also gives you the option to change the name/author directly in the modal.