Fix Default Horizontal Scrollbar in Replication Page

[bupd]

Thank you for contributing to Harbor!

Comprehensive Summary of your change

• Resolved an issue where a horizontal scrollbar appeared unnecessarily due to the last table column being hidden, leaving a gap. By rearranging the columns so the last declared column is always visible, the scrollbar issue is fixed.
• This simple change ensures the table layout works as expected without any extra scrollbars by default.

Before

After

Issue being fixed

Fixes Unwanted Scrollbar in Replication page.

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.09%. Comparing base (c8c11b4) to head (71b12e8).
Report is 300 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #21033       +/-   ##
===========================================
+ Coverage   45.36%   66.09%   +20.72%     
===========================================
  Files         244     1049      +805     
  Lines       13333   114645   +101312     
  Branches     2719     2867      +148     
===========================================
+ Hits         6049    75769    +69720     
- Misses       6983    34734    +27751     
- Partials      301     4142     +3841     

Flag	Coverage Δ
unittests	66.09% <ø> (+20.72%)	⬆️

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see 1288 files with indirect coverage changes

[xuelichao]

LGTM