pref: optimize the help style of some formkit components

[LIlGG]

What type of PR is this?

/kind improvement
/area ui

What this PR does / why we need it:

优化 formkit 中 checkout、repeater、group 组件的 help 样式。

移除 checkout 的内边距
为 repeater、group 组件增加底部边距

How to test it?

观察上述组件的 help 样式是否正常。

Which issue(s) this PR fixes:

Fixes #5411

Does this PR introduce a user-facing change?

优化表单中复选框、单选框等组件的帮助文字样式。

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.56%. Comparing base (5fdf6c0) to head (72d434d).
Report is 77 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5521      +/-   ##
============================================
- Coverage     56.91%   56.56%   -0.35%     
+ Complexity     3319     3310       -9     
============================================
  Files           587      592       +5     
  Lines         18968    19178     +210     
  Branches       1401     1355      -46     
============================================
+ Hits          10795    10848      +53     
- Misses         7594     7769     +175     
+ Partials        579      561      -18     

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[ruibaby]

在 Repeater 或者 Group 中的 Checkbox 和 Radio 等组件似乎没有对齐。

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.4% Duplication on New Code

See analysis details on SonarCloud

[LIlGG]

在 Repeater 或者 Group 中的 Checkbox 和 Radio 等组件似乎没有对齐。

经过测试，radio 组件正常。已补充 checkbox 的样式。

[JohnNiang]

/lgtm

[guqing]

/lgtm

[JohnNiang]

/approve

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang

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• ui/OWNERS [JohnNiang]

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