SongSelect: Add Settings

- Resolution can be adjusted, as well as touch drum animation on mobile
- A translation text file "songtitle.txt" can be imported
  - Titles and translated titles are each on their own line, if a line begins with a language code, it will translate the song title that is above
  - An example file can be found here: https://gist.github.com/LoveEevee/65fe66f0b54c0536f96fd2f4862984d4
- The page will fail to load if version on the page does not match /api/config
- Disabled Tab key while playing, before hitting it would focus the version link
- Fix forcing branches in debug not working
- Fixed not being able to click on songs that do not have oni but have ura
- Fix unexpected category being used as a fallback
- Fix verticalText and layeredText not accepting anything except strings

public/assets/img/img.css

@@ -10,24 +10,9 @@
 #loading-don{
 	background-image: url("dancing-don.gif");
 }
-#touch-drum-img{
-	background-image: url("touch_drum.png");
-}
 #touch-full-btn{
 	background-image: url("touch_fullscreen.png");
 }
 #touch-pause-btn{
 	background-image: url("touch_pause.png");
 }
-.song-stage-1{
-	background-image: url("bg_stage_1.png");
-	background-size: calc(100vh / 720 * 66);
-}
-.song-stage-2{
-	background-image: url("bg_stage_2.png");
-	background-size: calc(100vh / 720 * 254);
-}
-.song-stage-3{
-	background-image: url("bg_stage_3.png");
-	background-size: calc(100vh / 720 * 458);
-}