fix(switch): revert defaultChecked to checked

[redallen]

What: Closes #2997, reverts #2749

Additional issues:

[patternfly-build]

PatternFly-React preview: https://patternfly-react-pr-3037.surge.sh

[tlabaj]

LGTM

[codecov-io]

Codecov Report

Merging #3037 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master    #3037   +/-   ##
=======================================
  Coverage   69.03%   69.03%           
=======================================
  Files         858      858           
  Lines       23529    23529           
  Branches     1875     1875           
=======================================
  Hits        16244    16244           
  Misses       6334     6334           
  Partials      951      951

Flag	Coverage Δ
#misc	95.45% <ø> (ø)	⬆️
#patternfly3	69.23% <ø> (ø)	⬆️
#patternfly4	68.13% <100%> (ø)	⬆️

Impacted Files	Coverage Δ
...nfly-4/react-core/src/components/Switch/Switch.tsx	66.66% <ø> (ø)	⬆️
...ore/src/components/Select/CheckboxSelectOption.tsx	64.44% <100%> (ø)	⬆️
.../react-core/src/components/Select/SelectOption.tsx	71.87% <100%> (ø)	⬆️

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[tlabaj]

LGTM

[patternfly-build]

Your changes have been released in:

• @patternfly/react-core@3.116.1
• @patternfly/react-docs@4.14.27
• @patternfly/react-inline-edit-extension@2.11.95
• demo-app-ts@3.7.10
• @patternfly/react-table@2.23.11
• @patternfly/react-topology@2.9.5
• @patternfly/react-virtualized-extension@1.2.78

Thanks for your contribution! 🎉