refactor: switch from Fetch API to Axios (#1520)

* refactor: switch from Fetch API to Axios

* fix: remove unwanted changes

* fix: rewrite error handling for Axios and remove IPv4 first setting

* style: run prettier

* style: run prettier

* fix: add back custom proxy agent

* fix: add back custom proxy agent

* fix: correct rebase issue

* fix: resolve review comments

cypress/config/settings.cypress.json

@@ -23,7 +23,6 @@
     "mediaServerType": 1,
     "partialRequestsEnabled": true,
     "enableSpecialEpisodes": false,
-    "forceIpv4First": false,
     "locale": "en"
   },
   "plex": {