feat: Hide the branch column if is not a multi-branch pipeline

Created by: live77

What type of PR is this?

/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #2321 (closed)

Special notes for reviewers:

Does this PR introduced a user-facing change?

feat: Hide the branch column if is not a multi-branch pipeline

Additional documentation, usage docs, etc.: