fix: improve the style of tab title

[mortalYoung]

简介

• 优化 tab 标题的样式

主要变更

• 删除无用样式
• 缩小部分的间距
• 添加主题样式

[codecov]

Codecov Report

Merging #409 (d9b63a7) into main (f99b10f) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #409      +/-   ##
==========================================
+ Coverage   80.80%   80.82%   +0.02%     
==========================================
  Files         177      177              
  Lines        4844     4851       +7     
  Branches     1044     1045       +1     
==========================================
+ Hits         3914     3921       +7     
  Misses        921      921              
  Partials        9        9              

Impacted Files	Coverage Δ
src/services/theme/helper.ts	100.00% <0.00%> (ø)
src/services/theme/colorRegistry.ts	100.00% <0.00%> (ø)

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[wewoor]

+1