confirm: fix fast click input cannot get beyboard instantly

[mov1er]

Please makes sure the items are checked before submitting your PR, thank you!

• Rebase before creating a PR to keep commit history clear.
• Only One commit
• No eslint errors

[codecov-io]

Codecov Report

Merging #3420 into v2 will decrease coverage by 0.09%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##               v2    #3420     +/-   ##
=========================================
- Coverage   19.41%   19.32%   -0.1%     
=========================================
  Files         226      226             
  Lines        5603     5609      +6     
  Branches      710      712      +2     
=========================================
- Hits         1088     1084      -4     
- Misses       4396     4406     +10     
  Partials      119      119

Impacted Files	Coverage Δ
src/components/confirm/index.vue	9.09% <0%> (-2.03%)	⬇️
src/components/inline-calendar/util.js	71.76% <0%> (-7.06%)	⬇️
src/components/selector/index.vue	18.6% <0%> (+4.65%)	⬆️

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