style(module: upload): style with no button

[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
🇨🇳 Chinese

☑️ 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

Attention: Patch coverage is 80.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 43.84%. Comparing base (a83ec40) to head (d4d47f9).

Files	Patch %	Lines
components/upload/Upload.razor	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3734   +/-   ##
=======================================
  Coverage   43.83%   43.84%           
=======================================
  Files         573      573           
  Lines       27839    27842    +3     
  Branches     5632     5633    +1     
=======================================
+ Hits        12204    12208    +4     
+ Misses      14648    14647    -1     
  Partials      987      987           

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