Feat: improve Helm charts values.yaml popup

[am6737]

• Added custom width (60vw) to Helm values.yaml dialog for better visibility.
• Enabled close modes: 'close' and 'mask' to improve user experience.

Description of your changes

Fixes #851

I have:

• Read and followed KubeVela's contribution process.
• Related Docs updated properly. In a new feature or configuration option, an update to the documentation is necessary.
• Run yarn lint to ensure the frontend changes are ready for review.
• Run make reviewableto ensure the server changes are ready for review.
• Added backport release-x.y labels to auto-backport this PR if necessary.

Special notes for your reviewer

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.03%. Comparing base (2ab672c) to head (7bbfb4e).
Report is 4 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (2ab672c) and HEAD (7bbfb4e). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (2ab672c)	HEAD (7bbfb4e)
apiserver-unittests	1	0
server-e2e-tests	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #909      +/-   ##
==========================================
- Coverage   59.01%   51.03%   -7.99%     
==========================================
  Files         116      116              
  Lines       19846    16511    -3335     
==========================================
- Hits        11713     8427    -3286     
- Misses       6696     6841     +145     
+ Partials     1437     1243     -194     

Flag	Coverage Δ
apiserver-unittests	?
server-e2e-tests	51.03% <ø> (+2.72%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[barnettZQG]

LGTM