Level editor & bug fix update

Fix some bugs in the main game:

• Fix a bug when starting a new game right after quitting a loaded save

• Fix a bug that when downloading level, they wouldn't show up in the subscriptions menu

• Solo, multiplayer and red/blue color having some issues when selected and starting a new game

• Some others minor bugs

Improved the level editor:

• Removed the limit of the rock and the knife, you can now place, more than one of them

• Remove the UI element of the limitation of some objects that had limitation

• If a button and/or 2 doors are placec on the level, their preview in the object selector is now hidden

• Being able to save a level while in "play" mode fixed

• "Finish a custom level" achievement can now only be unlocked when "play" is clickd in the menu

Just to remind you that the knife and maybe the rock too can not function properly when a part of their hitbox is out of the game's window.

If you encounter any bugs, thanks to tell me about it in the community hub.