fix(comp:select): call blur after 'enter' envent

[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?

• 在可输入模式下，输入内容后，按下回车键，会保存输入的内容。
• 再一次按下回车键，会把内容重置为第一个选项的值。

What is the new behavior?

• 单选模式下，按下回车后，触发 blur 事件，来规避上面的问题。

Other information

[idux-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #1441 (f5ed0d5) into main (7829ca1) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1441      +/-   ##
==========================================
+ Coverage   92.81%   92.84%   +0.03%     
==========================================
  Files         327      327              
  Lines       30349    30350       +1     
  Branches     2546     2549       +3     
==========================================
+ Hits        28168    28179      +11     
+ Misses       2181     2171      -10     

Impacted Files	Coverage Δ
packages/components/select/src/Select.tsx	86.47% <100.00%> (+0.05%)	⬆️
packages/cdk/a11y/src/focusMonitor.ts	91.59% <0.00%> (+1.75%)	⬆️

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