fix: tree can't update root node

[mortalYoung]

简介

• 修复 tree 组件无法修改根节点的问题

[codecov]

Codecov Report

Merging #368 (f871855) into main (91c7b3c) will increase coverage by 0.44%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
+ Coverage   59.48%   59.92%   +0.44%     
==========================================
  Files         173      173              
  Lines        4650     4659       +9     
  Branches     1021     1021              
==========================================
+ Hits         2766     2792      +26     
+ Misses       1864     1847      -17     
  Partials       20       20              

Impacted Files	Coverage Δ
src/services/helper.ts	90.16% <0.00%> (+2.86%)	⬆️
src/model/settings.ts	100.00% <0.00%> (ø)
src/i18n/localization.ts	100.00% <0.00%> (ø)
src/workbench/editor/group.tsx	0.00% <0.00%> (ø)
src/workbench/editor/editor.tsx	31.81% <0.00%> (ø)
src/services/theme/colorThemeService.ts	100.00% <0.00%> (ø)
src/services/workbench/editorService.ts	5.46% <0.00%> (+1.58%)	⬆️
src/i18n/localeService.ts	67.27% <0.00%> (+3.12%)	⬆️
src/model/workbench/editor.ts	65.62% <0.00%> (+3.55%)	⬆️
src/controller/settings.ts	60.00% <0.00%> (+4.44%)	⬆️
... and 1 more

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[mortalYoung]

该 helper 的测试用例未覆盖，先合并再补全

[AndyZjy]

LGTM