UI overhaul

This update has introduced a complete overhaul to the UI and UX, the main menu now supports controller input and the credits menu has been added, saving data also had a minor issue that has been fixed, the game would save the level as an int but because I use JSON it turns into a string and I kept saving it as ints which eventually would cause out of range errors however it has been fixed. The menu whilst playing the game has also been fixed regarding the x scale of the buttons and doesn't look squished.

The main menu buttons are now all aligned and all provide a nice background and hover effect to help you navigate, this also applies to any subsequent button within the main menu.

That's all for this update.