fix(cascader): fix search clear

[itiiss]

级联选择器清空关键词重新搜索

[vercel]

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[codecov]

Codecov Report

Merging #939 (172539a) into master (5624055) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #939   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          149       149           
  Lines         4859      4860    +1     
  Branches      1300      1301    +1     
=========================================
+ Hits          4859      4860    +1     

Impacted Files	Coverage Δ
src/components/cascader/search-bar.tsx	100.00% <100.00%> (ø)

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

80.0% Coverage
0.0% Duplication