feat: support dragging to reorder block

[LucasXu0]

• blocks
  • paragraph
  • heading
  • bulleted list
  • numbered list
  • quote
  • todo list
• blocks with children
  • render children
• move block to nested level

showcase.mp4

[codecov]

Codecov Report

Attention: Patch coverage is 45.83333% with 13 lines in your changes missing coverage. Please review.

Project coverage is 72.40%. Comparing base (200b572) to head (7e1bdda).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...t/service/selection/desktop_selection_service.dart	0.00%	8 Missing ⚠️
...or/editor_component/service/selection_service.dart	0.00%	3 Missing ⚠️
...base_component/block_component_action_wrapper.dart	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #887      +/-   ##
==========================================
- Coverage   72.44%   72.40%   -0.05%     
==========================================
  Files         317      317              
  Lines       14778    14785       +7     
==========================================
- Hits        10706    10705       -1     
- Misses       4072     4080       +8     

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