fix: collaboration initialize

[Ricbet]

Types

• 🐛 Bug Fixes

Background or solution

由于 initialize 的时序太靠后了（在 onDidStart 里）
导致在刷新之后，监听不到首次打开的文件发出的 EditorDocumentModelCreationEvent 事件

Changelog

修复协同编辑模块的初始化时序问题

[codecov]

Codecov Report

Base: 57.81% // Head: 57.81% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (6c3f4e4) compared to base (927717e).
Patch coverage: 50.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2207      +/-   ##
==========================================
- Coverage   57.81%   57.81%   -0.01%     
==========================================
  Files        1316     1316              
  Lines       83070    83071       +1     
  Branches    17286    17286              
==========================================
- Hits        48027    48024       -3     
- Misses      31848    31851       +3     
- Partials     3195     3196       +1     

Flag	Coverage Δ
jsdom	52.76% <50.00%> (-0.01%)	⬇️
node	16.48% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/collaboration/src/common/types.ts	100.00% <ø> (ø)
...collaboration/src/browser/collaboration.service.ts	72.12% <50.00%> (-2.27%)	⬇️

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[situ2001]

LGTM