remade localization system once again

- new localization system: fast, dynamic, way more organized
- localization strings are WAY more descriptive
- it's now easier to add support for other languages (just one loc file instead of five)
- localization now falls back to english if localized string isnt available
- got rid of all static language selectors (probably)
- slightly updated english and russian strings
- miscellaneous settings items have been bundled together and moved to the bottom, cause they're used the least
- bottom links should no longer touch the popup border on overflow
- rearranged popup order in the rendered page
- bumped version up to 2.2.5

if you see strings that are like this: !!EXAMPLE!! or withoutspace please file an issue on github

src/config.json

@@ -1,11 +1,10 @@
 {
     "appName": "cobalt",
-    "version": "2.2",
+    "version": "2.2.5",
     "streamLifespan": 1800000,
     "maxVideoDuration": 1920000,
     "genericUserAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36",
     "repo": "https://github.com/wukko/cobalt",
-    "supportedLanguages": ["en", "ru"],
     "authorInfo": {
         "name": "wukko",
         "link": "https://wukko.me/",