fix: prevent anonymous extensions from being filtered due to duplicate names

[LIlGG]

What type of PR is this?

/kind bug
/area editor
/milestone 2.19.x

What this PR does / why we need it:

为匿名的 Extension 添加 name 值，解决由于匿名的 Extension name 相同而导致被过滤的问题。

How to test it?

测试默认编辑器附件库是否可以被打开。

Does this PR introduce a user-facing change?

解决默认编辑器附件库无法被打开的问题

[ruibaby]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ruibaby

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Needs approval from an approver in each of these files:

• ui/OWNERS [ruibaby]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
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 57.93%. Comparing base (6cd8dc8) to head (1e0e37e).
Report is 39 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #6548      +/-   ##
============================================
- Coverage     58.18%   57.93%   -0.25%     
- Complexity     3774     3878     +104     
============================================
  Files           651      670      +19     
  Lines         22125    22866     +741     
  Branches       1538     1550      +12     
============================================
+ Hits          12873    13248     +375     
- Misses         8641     9010     +369     
+ Partials        611      608       -3     

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