fix(modul: affix) code cleaning, doc update

[ElDiddi]

Code cleaning and updated the documentation to match the implementation.

🤔 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

Compiler warnings.

📝 Changelog

Code cleaning and updated the documentation to match the implementation.

Language	Changelog
🇺🇸 English	Code cleaning and updated the documentation to match the implementation.
🇨🇳 Chinese	Code cleaning and updated the documentation to match the implementation.

☑️ 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

[codecov-io]

Codecov Report

Merging #805 (6b7e18a) into master (b993b8e) will increase coverage by 0.00%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #805   +/-   ##
======================================
  Coverage    3.66%   3.66%           
======================================
  Files         395     395           
  Lines       17520   17519    -1     
======================================
  Hits          642     642           
+ Misses      16878   16877    -1     

Impacted Files	Coverage Δ
components/affix/Affix.razor	0.00% <ø> (ø)
components/affix/Affix.razor.cs	0.00% <ø> (ø)

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[ElderJames]

LGTM.