Browser version and minor improvements

A browser version of the game is out! This is my first time making a browser game, so let me know if it works or doesn't work. If I can master the art of making these, I can hopefully release some fancy browser games in the future too.

I have also improved the desktop builds a little bit:

• The start sound is less loud
• The ending scene can't be missed as easily by spam pressing buttons
• The title screen menu is opened automatically when you return from the credits or the achievements screen
• Menus can be clicked with mouse
• The character can also be controlled with mouse or touch controls
• Fixed the achievement popup potentially being stretched with certain window sizes