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。

[sonarcloud]

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     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[LIlGG]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: guqing

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [guqing]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment