refactor: preserve post title when opening settings

[ruibaby]

What type of PR is this?

/area ui
/kind improvement
/milestone 2.17.x

What this PR does / why we need it:

在文章编辑页面，打开文章设置时，支持保存标题，防止已修改的标题恢复为之前的值。

Which issue(s) this PR fixes:

Fixes #6058

Does this PR introduce a user-facing change?

优化文章编辑页面自动保存标题的功能

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.76%. Comparing base (5fdf6c0) to head (4015400).
Report is 261 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #6122      +/-   ##
============================================
- Coverage     56.91%   54.76%   -2.16%     
- Complexity     3319     3432     +113     
============================================
  Files           587      629      +42     
  Lines         18968    21185    +2217     
  Branches       1401     1482      +81     
============================================
+ Hits          10795    11601     +806     
- Misses         7594     8994    +1400     
- Partials        579      590      +11     

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[guqing]

/approve

[JohnNiang]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: guqing, JohnNiang

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• ui/OWNERS [JohnNiang,guqing]

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