fix(comp:slider): slider thumb tooltip shouldn't blink

[sallerli1]

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?

鼠标移动到 slider thumb上触发mouseleave, tooltip关闭，接着触发mouseenter, tooltip开启，导致tooltip闪烁

What is the new behavior?

将mouseenter、mouseleave事件同时绑定到thumb以及tooltip上，防止闪烁

Other information

[idux-bot]

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[codecov]

Codecov Report

Merging #1256 (e611b03) into main (f3aa234) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1256   +/-   ##
=======================================
  Coverage   93.05%   93.05%           
=======================================
  Files         320      320           
  Lines       29448    29450    +2     
  Branches     3339     3339           
=======================================
+ Hits        27403    27405    +2     
  Misses       2045     2045           

Impacted Files	Coverage Δ
packages/components/slider/src/Thumb.tsx	84.15% <100.00%> (+0.32%)	⬆️

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[danranVm]

加个 delay 不就好吗？

[sallerli1]

加delay不行，加delay就是闪得慢了点