Fix/memory leak

[cyrilluce]

Description

梳理 dispose 逻辑，修复 graph.dispose() 内存泄漏问题

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Enhancement (changes that improvement of current feature or performance)
• Refactoring (changes that neither fixes a bug nor adds a feature)
• Test Case (changes that add missing tests or correct existing tests)
• Code style optimization (changes that do not affect the meaning of the code)
• Docs (changes that only update documentation)
• Chore (changes that don't modify src or test files)

Self Check before Merge

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #4009 (aa3ddb7) into master (b92a23e) will decrease coverage by 0.01%.
Report is 7 commits behind head on master.
The diff coverage is 31.25%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4009      +/-   ##
==========================================
- Coverage   10.35%   10.34%   -0.01%     
==========================================
  Files         180      180              
  Lines       10529    10532       +3     
  Branches     2565     2567       +2     
==========================================
  Hits         1090     1090              
- Misses       9350     9353       +3     
  Partials       89       89              

Flag	Coverage Δ
x6	10.34% <31.25%> (-0.01%)	⬇️

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

Files	Coverage Δ
packages/x6/src/graph/graph.ts	14.46% <ø> (ø)
packages/x6/src/model/collection.ts	1.41% <ø> (ø)
packages/x6/src/view/view.ts	6.04% <ø> (ø)
packages/x6/src/model/model.ts	1.63% <50.00%> (ø)
packages/x6/src/renderer/scheduler.ts	4.59% <66.66%> (ø)
packages/x6/src/view/cell.ts	10.63% <0.00%> (ø)
packages/x6/src/shape/html.ts	29.78% <22.22%> (ø)

... and 1 file with indirect coverage changes

[cyrilluce]

@NewByVector x6-common 也需要一同发布，否则 plugin-scroller 可能会报错

[cyrilluce]

@NewByVector x6-common 也需要一同发布，否则 plugin-scroller 可能会报错