rep+ jingle bugfix

fixed previous fix not working if tainted and regular run start jingles were switched

fixed run start jingle getting cut off by music if set to default

devs broke the API update

added a slight delay to the first song to play after a run start/continue

added run start jingles for the Flash, Antibirth and Super Meat Boy soundtracks

-added more error checking for stageAPI
-fixed the run start jingle function playing the 'rebirth' jingle instead of the 'default' jingle if the jingle was set to same as menu or random and the menu music or randomly chosen soundtrack was default

-added run start and tainted run start jingles (repentogon only)
-music now waits for the run start jingle to finish before starting if repentogon is in use (to allow longer custom run start jingles)
-added extra error checking to queue system so it doesn't break if it's somehow fed a track that can't be found
-all play functions now play at 0 volume and (unless they are meant to be silent) are then immediately followed by the volume update function (if this doesn't fix random millisecond loud music I don't know what will)
-added extra error check for config menu not being detected for some reason

-fixed music being glitchy when in a custom floors mirror dimension
-fixed room and floor music overlapping if you had continuous floor music enabled while in a custom floor