Update 1.2 - QoL and more bugfixes

Hey, everyone! Vacuos here. 

This is a small update to add all the feedback content we received in the jam. The truth is that I'm happy with how the game we made turned out and I wanted to update it to provide a better experience and also to add the rank system that we didn't have time to implement.

Gameplay Additions

• Rank system.
• The length of the arrow now adapts according to how hard the player is going to be launched.
• Slight changes in the map

Quality of Life elements:

• Restart key added
• Remember username when starting the game
• Music slider and sound slider in pause menu
• Fade transition in endgame

UI Enhancements:

• Animated text
• Bigger font size
• Fullscreen text for fullscreen button in game.
• The arrow indicating the player's direction and strength is now a proper arrow.

Bug fixes:

• Fixed crash when spamming the button to update the leaderboard.
• Fixed bug with particles appearing above the black bars.