fix(many components): some components centered question resolved

[zhuzilv]

timepicker文字及icon 颜色，居中对齐问题。
tree 文字背景框icon 水平对齐
dropdown 文档修改
upload 和pagination。未出现问题

[vercel]

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[codecov]

Codecov Report

Merging #965 (0c24e8b) into master (1aff42b) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #965   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          151       151           
  Lines         4873      4873           
  Branches      1302      1302           
=========================================
  Hits          4873      4873           

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication