Sync the latest code from AppFlowy

[LucasXu0]

Closes #40

[codecov]

Codecov Report

Merging #41 (f55730d) into main (06240a0) will increase coverage by 1.11%.
The diff coverage is 98.00%.

@@            Coverage Diff             @@
##             main      #41      +/-   ##
==========================================
+ Coverage   80.42%   81.53%   +1.11%     
==========================================
  Files         123      123              
  Lines        7094     7117      +23     
==========================================
+ Hits         5705     5803      +98     
+ Misses       1389     1314      -75     

Impacted Files	Coverage Δ
lib/src/render/toolbar/toolbar_item_widget.dart	100.00% <ø> (ø)
...nternal_key_event_handlers/copy_paste_handler.dart	19.00% <0.00%> (ø)
lib/src/core/transform/transaction.dart	95.76% <100.00%> (+37.04%)	⬆️
lib/src/render/toolbar/toolbar_item.dart	93.58% <100.00%> (-0.03%)	⬇️
...event_handlers/markdown_syntax_to_styled_text.dart	75.25% <100.00%> (ø)
lib/src/service/keyboard_service.dart	93.61% <100.00%> (+0.28%)	⬆️
...rvice/shortcut_event/built_in_shortcut_events.dart	98.13% <100.00%> (ø)
lib/src/service/shortcut_event/shortcut_event.dart	61.90% <100.00%> (+15.95%)	⬆️

... and 3 files with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.