chore(demo-app-ts): increase strict checks for react-integration

[seanforyou23]

What: This PR raises the strict checks used in react-integration package to the maximum degree possible before breaking anything. This should help prevent new issues from being introduced while we chip away at bringing the code into compliance with strictNullChecks, strictFunctionTypes, noImplicitAny, and strictPropertyInitialization compiler options.

It's a safe step toward solving #3223

[codecov-io]

Codecov Report

Merging #3222 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3222   +/-   ##
=======================================
  Coverage   67.44%   67.44%           
=======================================
  Files         892      892           
  Lines       24872    24872           
  Branches     2142     2142           
=======================================
  Hits        16774    16774           
  Misses       7093     7093           
  Partials     1005     1005

Flag	Coverage Δ
#misc	95.45% <ø> (ø)	⬆️
#patternfly3	69.3% <ø> (ø)	⬆️
#patternfly4	64.77% <ø> (ø)	⬆️

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[patternfly-build]

PatternFly-React preview: https://patternfly-react-pr-3222.surge.sh

[tlabaj]

LGTM

[patternfly-build]

Your changes have been released in:

• patternfly-react-extensions@3.0.3
• patternfly-react@2.39.7
• @patternfly/react-console@2.0.3
• @patternfly/react-catalog-view-extension@1.1.8
• @patternfly/react-docs@4.16.12
• @patternfly/react-inline-edit-extension@2.12.19
• demo-app-ts@3.9.8
• @patternfly/react-integration@3.9.2
• @patternfly/react-table@2.24.19

Thanks for your contribution! 🎉