fix(comp:table): style update and ellipsis conflicts with column type

[danranVm]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added/updated or not needed
• Docs and demo have been added/updated or not needed

What is the current behavior?

• 表格配置 ellipsis 后，selectable 列显示省略号
• 表头分组的样式问题
  

What is the new behavior?

• 支持 css variable
• 样式同步设计规范
• 修复 ellipsis 在 selectable, expandable 等列的样式问题

Other information

[idux-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #1245 (3b57200) into main (d07e914) will decrease coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 3b57200 differs from pull request most recent head 55b5860. Consider uploading reports for the commit 55b5860 to get more accurate results

@@            Coverage Diff             @@
##             main    #1245      +/-   ##
==========================================
- Coverage   93.05%   93.04%   -0.01%     
==========================================
  Files         320      320              
  Lines       29426    29419       -7     
  Branches     3338     3337       -1     
==========================================
- Hits        27381    27374       -7     
  Misses       2045     2045              

Impacted Files	Coverage Δ
packages/components/icon/src/dependencies.ts	99.12% <0.00%> (-0.02%)	⬇️
packages/components/icon/src/definitions.ts	100.00% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.