feat: improve the help tips for system setting options

[ruibaby]

What type of PR is this?

/area core
/kind improvement
/milestone 2.14.0

What this PR does / why we need it:

improve the help tips for system setting options

Which issue(s) this PR fixes:

Fixes #5513

Does this PR introduce a user-facing change?

完善系统设置选项的帮助提示。

[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 56.56%. Comparing base (5fdf6c0) to head (f4b42a2).
Report is 63 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5516      +/-   ##
============================================
- 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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[LIlGG]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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