add innerTube as primary videoInfo endpoint

- drop videoInfo.genreUrl since it's always empty
- bump ts target to ES2021 for Promise.any
- fix mocks to return err: false
- get maxResThumbnail from static endpoint

src/utils/innerTubeAPI.ts

@@ -21,9 +21,4 @@ export async function getPlayerData(videoID: string): Promise<innerTubeVideoDeta
     } else {
         return Promise.reject(result.status);
     }
-}
-
-export const getLength = (videoID: string): Promise<number> =>
-    getPlayerData(videoID)
-        .then(pData => Number(pData.lengthSeconds))
-        .catch(err => err);
+}