fix(layout): PageContainer attr affixProps typing

[sarufarr]

No description provided.

[github-actions]

🎊 PR Preview has been successfully built and deployed to https://pro-components-preview-pr-4416.surge.sh

[codecov]

Codecov Report

Merging #4416 (294fb64) into master (e8a2f2a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4416   +/-   ##
=======================================
  Coverage   99.54%   99.54%           
=======================================
  Files         189      189           
  Lines        6347     6347           
  Branches     2247     2247           
=======================================
  Hits         6318     6318           
  Misses         28       28           
  Partials        1        1           

Impacted Files	Coverage Δ
...ages/layout/src/components/PageContainer/index.tsx	97.70% <ø> (ø)

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