Essentially, this page: https://github.com/settings/applications

I think we can use a table similar to Tokens. Details to show: app name, last used (most recent date for any token owned by the app/user combination), owner (Globalping if not set). Dropdown with the only option "Revoke access" which deletes all app tokens.

After jsdelivr/globalping-auth#2, the revocation also deletes the relevant gp_apps_approvals entry.

Update: let's show it on the tokens page, below the current table.