### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### What happened?

When activating the Admin Settings > UI Settings option "Require authentication for public AI Hub", Users are correctly redirected to the login page when opening `<litellm_base_url>/ui/model_hub_table`. But after successfully logging in, they land on the "normal" LiteLLM UI, not the public AI Hub page.

When explicitly opening `<litellm_base_url>/ui/login/?redirect_to=<litellm_base_url_html_encoded>%2Fui%2Fmodel_hub_table` in the browser, the process works as expected. Maybe it could be possible to add this query param, if users call `/ui/model_hub_table` and are not logged in yet.

### Steps to Reproduce

1. As an admin, log into LiteLLM UI 2. Navigate to the menu Settings > Admin Settings > UI Settings 3. Activate the toggle for "Require authentication for public AI Hub" 4. Logout of admin account 5. Open the URL of the public model hub in the browser (`<litellm_base_url>/ui/model_hub_table`) 6. You should be redirected to a login page (-> works fine) 7. Look at the URL in the browser (-> `<litellm_base_url>/ui/login` - without any query para…