Server-side Pagination: Remove need to get 2x cluster types in side nav

[richard-cox]

• blocked on SQLite backed cache: Support sorting/filtering on resource A by property in resource B rancher#49267
• we should be able to remove the need to fetch provisioning or mgmt cluster given the above issue

[richard-cox]

Blocked on

• SQLite backed cache: Support sorting/filtering on resource A by property in resource B rancher#49267