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/modules/services/reddit.js

@@ -1,5 +1,5 @@
 import got from "got";
-import loc from "../sub/i18n.js";
+import loc from "../../localization/manager.js";
 import { genericUserAgent, maxVideoDuration } from "../config.js";
 
 export default async function(obj) {
@@ -20,9 +20,9 @@ export default async function(obj) {
                 return { typeId: 1, urls: video};
             }
         } else {
-            return { error: loc(obj.lang, 'apiError', 'nothingToDownload') };
+            return { error: loc(obj.lang, 'ErrorEmptyDownload') };
         }
     } catch (err) {
-        return { error: loc(obj.lang, 'apiError', 'noFetch') };
+        return { error: loc(obj.lang, 'ErrorBadFetch') };
     }
 }