fix: Fix 404 redirect if resource not found

Created by: leoendless

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #633 (closed) #630 (closed) https://github.com/kubesphere/kubesphere/issues/2317

Special notes for reviewers:

Additional documentation, usage docs, etc.: