Game: Fix notelocking

- Will not skip the note if `ka` was pressed right before `don` note or `don` was pressed right before `ka` note
- Will still skip the note if `don` and `ka` is pressed at the same time (within 25ms)
- Fixed `TAIKOWEBSKIN:` in imported songs crashing the game with some values

public/src/js/parseosu.js

@@ -181,7 +181,8 @@ class ParseOsu{
 				measures.push({
 					ms: ms,
 					originalMS: ms,
-					speed: speed
+					speed: speed,
+					visible: true
 				})
 			}
 		}