fix(pro:search): empty state should be determined by search states

[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?

存在临时标签但value是空的时候，placeholder异常显示

What is the new behavior?

高级搜索的标签渲染直接与searchStates数据相关，空状态也应当根据searchStates判断

Other information

[idux-bot]

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[codecov]

Codecov Report

Merging #1613 (ca4963c) into main (fdda882) will increase coverage by 0.00%.
The diff coverage is 0.00%.

❗ Current head ca4963c differs from pull request most recent head b7d0242. Consider uploading reports for the commit b7d0242 to get more accurate results

@@           Coverage Diff           @@
##             main    #1613   +/-   ##
=======================================
  Coverage   92.56%   92.57%           
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  Files         338      338           
  Lines       31542    31545    +3     
  Branches     3602     3602           
=======================================
+ Hits        29198    29202    +4     
+ Misses       2344     2343    -1     

Files Changed	Coverage Δ
packages/pro/search/src/ProSearch.tsx	19.60% <0.00%> (-0.24%)	⬇️

... and 2 files with indirect coverage changes