Add Prettier format script for consistent code formatting in UI files

[bupd]

Thank you for contributing to Harbor!

Comprehensive Summary of your change

This PR uses Prettier to the frontend component of the Harbor project to enforce consistent code formatting across frontend files. Currently, the frontend codebase has inconsistent formatting, which makes contributions more error-prone and increases unnecessary diffs in PRs.

By adding npm format script, we can ensure uniform formatting, which will improve the overall readability and maintainability of the code. It also reduces potential formatting-related issues in future PRs, ensuring that the focus stays on functionality rather than style.

• Added an npm script to easily format all files in the project (npm run prettier).
• Applied Prettier formatting to the existing frontend codebase to showcase its effectiveness.

Issue being fixed

N/A (This is an enhancement to improve code quality and consistency).

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.

[Vad1mo]

@bupd

Can you add the run to the Github Action checks and fail the checks if there are errors

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.90%. Comparing base (c8c11b4) to head (53846e7).
Report is 285 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #20998       +/-   ##
===========================================
+ Coverage   45.36%   68.90%   +23.53%     
===========================================
  Files         244      801      +557     
  Lines       13333   100650    +87317     
  Branches     2719        0     -2719     
===========================================
+ Hits         6049    69351    +63302     
- Misses       6983    27490    +20507     
- Partials      301     3809     +3508     

Flag	Coverage Δ
unittests	68.90% <ø> (+23.53%)	⬆️

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see 1040 files with indirect coverage changes