Charter/Editor additions and fixes (#793)

* camera highlights again

* option to mute all hitsounds

* context menus inside context menus and wip sliders in context menu

* wip volume slider stuff

* strumline preview fix with resizable editors

* more slider stuff

* editor sfx option should now actually work for everything

* fixed strumline vocals volume, fixed note type option keybinds and moved bookmarks and note types into submenus

* fix for saving difficulty specific meta json

* some extra misc changes

fixed camera highlights not updating when zooming in/out, optimized some of the highlight draw code so it doesn't do a full loop, and added the note scale flag into the strumline preview

* fix compiling after merge

source/funkin/editors/ui/UIButton.hx

@@ -30,7 +30,7 @@ class UIButton extends UISliceSprite {
 		super.onHovered();
 		if (FlxG.mouse.justPressed) {
 			hasBeenPressed = true;
-			FlxG.sound.play(Paths.sound(Flags.DEFAULT_EDITOR_BUTTONCLICK_SOUND));
+			UIState.playEditorSound(Flags.DEFAULT_EDITOR_BUTTONCLICK_SOUND);
 		}
 		if (FlxG.mouse.justReleased && callback != null && shouldPress && hasBeenPressed) {
 			callback();