feat(module: select): add a simple select with string value

[ElderJames]

[中文版模板 / Chinese template]

🤔 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

[codecov-io]

Codecov Report

Merging #836 (2ea6bd0) into master (4b0903b) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master    #836      +/-   ##
=========================================
- Coverage    3.61%   3.61%   -0.01%     
=========================================
  Files         398     398              
  Lines       17752   17758       +6     
=========================================
  Hits          642     642              
- Misses      17110   17116       +6     

Impacted Files	Coverage Δ
components/select/Select.razor.cs	0.00% <0.00%> (ø)
components/select/SelectOption.razor.cs	0.00% <0.00%> (ø)
components/select/internal/SelectContent.razor	0.00% <ø> (ø)
components/select/internal/SelectContent.razor.cs	0.00% <0.00%> (ø)

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