pref: remove nofollow from the default editor link

[LIlGG]

What type of PR is this?

/kind improvement
/area editor
/area ui
/milestone 2.14.x

What this PR does / why we need it:

将默认富文本编辑器中的链接中的 rel 属性由默认的 noopener noreferrer nofollow 属性改为 null，优化 SEO 。

How to test it?

查看使用默认富文本编辑器创建的链接，其 rel 属性是否不再是 noopener noreferrer nofollow

Which issue(s) this PR fixes:

Fixes #5328

Does this PR introduce a user-facing change?

移除默认富文本编辑器中链接的 nofollow 等属性，优化 SEO。

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.86%. Comparing base (5fdf6c0) to head (83f7ad0).
Report is 44 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5477      +/-   ##
============================================
- Coverage     56.91%   56.86%   -0.05%     
- Complexity     3319     3341      +22     
============================================
  Files           587      589       +2     
  Lines         18968    19144     +176     
  Branches       1401     1394       -7     
============================================
+ Hits          10795    10887      +92     
- Misses         7594     7674      +80     
- Partials        579      583       +4     

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[ruibaby]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ruibaby

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• ui/OWNERS [ruibaby]

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[guqing]

/lgtm