Show upgrade message and do not render child routes when database upgrade needs attention

[pavish]

Description

• This is a follow-up of Implement UI for upgrading databases #4123.
• Upgrade Mathesar service.
  • Inorder to test locally, modify the last_confirmed_sql_version column in the mathesar_database django table.
• Visit the home page. Upgrade message is shown.
• Visit the database page (/db/<databsae_id>/) or any of the child routes (/db/<database_id>/schemas/<schema_oid>/).
• These pages are rendered as usual, which may cause unexpected results/bugs if the sql has changed considerably.

Expected behaviour

• When needs_upgrade_attention property of the database model is true, the database route should show an upgrade UI similar to the upgrade modal. The child routes should redirect to the database page.