feat: support document editing

[qinluhe]

Feature Preview

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PR Checklist

• My code adheres to AppFlowy's Conventions
• I've listed at least one issue that this PR fixes in the description above.
• I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• All existing tests are passing.

[github-actions]

🥷 Ninja i18n – 🛎️ Translations need to be updated

Project /project.inlang

lint rule	new reports	level	link
Missing translation	162	warning	contribute (via Fink 🐦)

[codecov]

Codecov Report

Attention: Patch coverage is 40.55944% with 1190 lines in your changes missing coverage. Please review.

Project coverage is 60.48%. Comparing base (7ecf213) to head (236ce77).
Report is 277 commits behind head on main.

Files with missing lines	Patch %	Lines
...p/src/application/slate-yjs/utils/yjsOperations.ts	33.78%	139 Missing and 6 partials ⚠️
...app/src/application/slate-yjs/utils/slateUtils.tsx	8.78%	135 Missing ⚠️
...wy_web_app/src/components/editor/shortcut.hooks.ts	25.68%	79 Missing and 2 partials ⚠️
...r/components/panels/mention-panel/MentionPanel.tsx	35.34%	72 Missing and 3 partials ⚠️
...ditor/components/panels/slash-panel/SlashPanel.tsx	58.92%	45 Missing and 1 partial ⚠️
...web_app/src/application/slate-yjs/command/index.ts	45.78%	39 Missing and 6 partials ⚠️
.../src/components/_shared/icon-picker/IconPicker.tsx	7.14%	39 Missing ⚠️
.../application/services/js-services/http/http_api.ts	2.63%	37 Missing ⚠️
...p/src/components/_shared/image-upload/Unsplash.tsx	5.55%	34 Missing ⚠️
...ents/toolbar/block-controls/HoverControls.hooks.ts	66.31%	29 Missing and 3 partials ⚠️
... and 61 more

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6842       +/-   ##
===========================================
- Coverage   74.41%   60.48%   -13.93%     
===========================================
  Files         245      307       +62     
  Lines        6566    12566     +6000     
  Branches     1057     1765      +708     
===========================================
+ Hits         4886     7601     +2715     
- Misses       1628     4760     +3132     
- Partials       52      205      +153     

Flag	Coverage Δ
appflowy_web_app	60.48% <40.55%> (-13.93%)	⬇️

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