Quality of Life [Alpha 24]

Some clever people have played Unending and asked for some small changes. This update brings you these features.

This includes things like: Holding down undo to keep undoing (same for redo), restarting from the death prompt, skipping the level end animation, fixing the blurry graphics on big screens, and other small issues.

For now, I will continue to revise the puzzle campaign and add more puzzles.