Port to Redux and add settings

src/store/settings/actions.ts

@@ -0,0 +1,4 @@
+import { createAction } from '@reduxjs/toolkit';
+
+export const setJellyfinCredentials = createAction<{ access_token: string, user_id: string, uri: string, deviced_id: string; }>('SET_JELLYFIN_CREDENTIALS');
+export const setBitrate = createAction<number>('SET_BITRATE');