Implement list breaking changes note endpoint for web_api

[khanhtc1202]

What this PR does / why we need it:

Which issue(s) this PR fixes:

Part of #5197

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 54 lines in your changes missing coverage. Please review.

Project coverage is 22.83%. Comparing base (9f5bd67) to head (77648d4). Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/app/server/grpcapi/web_api.go	0.00%	54 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #5199 +/- ## ========================================== - Coverage 22.84% 22.83% -0.02% ========================================== Files 420 420 Lines 45249 45302 +53 ========================================== + Hits 10338 10344 +6 - Misses 34116 34163 +47 Partials 795 795 ```

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