added an option for tiktok h265 videos, majorly cleaned up frontend

- cleaned up cobalt.js (by a lot)
- removed notification dot
- removed settings migration
- removed vimeoDash
- turned youtube track language switcher into a toggle
- added clarification as to what youtube dub does
- updated defaults to match with backend
- now matching a url from any string at any place

src/config.json

@@ -3,9 +3,6 @@
     "maxVideoDuration": 10800000,
     "genericUserAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
     "authorInfo": {
-        "name": "wukko",
-        "link": "https://wukko.me/",
-        "contact": "https://wukko.me/contacts",
         "support": {
             "default": {
                 "email": {