fix: Fix network policy some bugs

Created by: liyefox

What type of PR is this? /kind bug

What this PR does / why we need it: fix some issues about network policy

Which issue(s) this PR fixes:

Fixes #https://github.com/kubesphere/kubesphere/issues/2344 Fixes #https://github.com/kubesphere/kubesphere/issues/2343 Fixes #https://github.com/kubesphere/kubesphere/issues/2342 Fixes #https://github.com/kubesphere/kubesphere/issues/2173