add spaceKeyPressed

[joeyZhouYicheng]

#838

[codecov]

Codecov Report

Merging #840 into master will decrease coverage by 0.08%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master    #840      +/-   ##
=========================================
- Coverage   92.38%   92.3%   -0.09%     
=========================================
  Files          27      27              
  Lines        1077    1078       +1     
  Branches       28      28              
=========================================
  Hits          995     995              
- Misses         82      83       +1

Impacted Files	Coverage Δ
packages/inquirer/lib/prompts/checkbox.js	99% <100%> (ø)	⬆️
packages/inquirer/lib/utils/screen-manager.js	94.64% <0%> (-1.79%)	⬇️

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[SBoudrias]

Great thanks!