fix(module: avatar): make size parameter support more length unit

[ElderJames]

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
• Bundle size optimization
• Performance optimization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	make size parameter support more length unit
🇨🇳 Chinese	让 Size 属性支持各种长度单位

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Changelog is provided or not needed

[github-actions]

[codecov]

Codecov Report

Merging #2653 (fb814a6) into master (c691eb9) will increase coverage by 1.72%.
The diff coverage is 96.66%.

@@            Coverage Diff             @@
##           master    #2653      +/-   ##
==========================================
+ Coverage   30.24%   31.96%   +1.72%     
==========================================
  Files         505      543      +38     
  Lines       34362    26451    -7911     
  Branches        0      260     +260     
==========================================
- Hits        10394     8456    -1938     
+ Misses      23968    17955    -6013     
- Partials        0       40      +40     

Impacted Files	Coverage Δ
components/core/CssSizeLength.cs	86.36% <94.11%> (+53.55%)	⬆️
components/avatar/Avatar.razor.cs	97.43% <100.00%> (-0.55%)	⬇️
components/core/Helpers/MemberPath/PathNode.cs	46.15% <0.00%> (-8.85%)	⬇️
components/avatar/AvatarGroup.razor	75.00% <0.00%> (-8.34%)	⬇️
components/core/Reflection/TypeDefined.cs	77.77% <0.00%> (-7.94%)	⬇️
components/input/InputGroup.razor.cs	87.50% <0.00%> (-6.95%)	⬇️
components/core/Helpers/DateHelper.cs	85.33% <0.00%> (-4.90%)	⬇️
...ponents/date-picker/types/DatePickerPlaceholder.cs	22.72% <0.00%> (-4.20%)	⬇️
...onents/date-picker/internal/DatePickerHeader.razor	41.86% <0.00%> (-3.21%)	⬇️
...ponents/core/Component/Overlay/type/TriggerType.cs	81.25% <0.00%> (-2.97%)	⬇️
... and 445 more

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