fix(pro:layout): fix sider border-right style

[danranVm]

docs(pro:layout): add collapsed demo

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added/updated or not needed
• Docs and demo have been added/updated or not needed

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Component style update
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Application (the showcase website) / infrastructure changes
• Other... Please describe:

What is the current behavior?

What is the new behavior?

Other information

[idux-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #659 (f9a9019) into main (efbfda1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #659   +/-   ##
=======================================
  Coverage   83.66%   83.66%           
=======================================
  Files         396      396           
  Lines        9897     9897           
  Branches     2273     2273           
=======================================
  Hits         8280     8280           
  Misses       1617     1617           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update efbfda1...f9a9019. Read the comment docs.