Demo Update d26.2d

[p]Adds ubuntu support to the demo! Ubuntu support also planned for the full release. Mac is not.[/p][p]I'm not able to personally test the steam deck version, so I'm not officially "supporting" it, but I can confirm the ubuntu build works, & that online documentation insinuates that GameMaker properly interprets steam deck input, so it is likely that you'll be able to run VI on a steam deck.[/p][p]Changes relative to the previous windows build:[/p]

• [p]title screen music[/p]
• [p]easy mode boss variants (but normal and hard are the same as each other \[& as they were before])[/p]

[p]I keep talking about how the game is "done" but not done, & while there are some QoL and art pass things left on the table, the game is in a state where I could release it today & be happy with it. I'm not going to push the release date around any further, just going to take some time with small things until launch day.[/p]