Add the Jackett widget

- add the follow-redirect package
- add the tough-cookie package

Jackett API uses a redirect mechanism to set a CSRF token.
This CSRF token is stored in a cookie that is required to
be present or the API won't work.

public/locales/en/common.json

@@ -139,5 +139,9 @@
         "numberOfQueries": "Queries",
         "numberOfFailGrabs": "Fail Grabs",
         "numberOfFailQueries": "Fail Queries"
+    },
+    "jackett": {
+        "configured": "Configured",
+        "errored": "Errored"
     }
 }