fix: Corrected and updated Serbian translation

[vmedar]

[中文版模板 / Chinese template]

🤔 This is a ...

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

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Corrected and updated translation keys in Serbian.

☑️ 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
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

[github-actions]

[yoyo837]

Please update snapshot.

[yoyo837]

#23369

[codecov]

Codecov Report

Merging #30401 (df8a8ab) into master (836163a) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master    #30401   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          397       397           
  Lines         7523      7514    -9     
  Branches      2105      2046   -59     
=========================================
- Hits          7523      7514    -9     

Impacted Files	Coverage Δ
components/date-picker/locale/sr_RS.tsx	100.00% <ø> (ø)
components/time-picker/locale/sr_RS.tsx	100.00% <ø> (ø)
components/locale/sr_RS.tsx	100.00% <100.00%> (ø)
...date-picker/generatePicker/generateRangePicker.tsx	100.00% <0.00%> (ø)
...ate-picker/generatePicker/generateSinglePicker.tsx	100.00% <0.00%> (ø)

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