(modals) allow content to be vertically scrollable (#3161)

*  (modals) allow content to be vertically scrollable

Closes #3079

* Feedback: overfloww auto

* fix modal scrollbar style

* dont need to spread

* lint 



* Update 3161.md

* adding width 100% to inputwithcontent

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Co-authored-by: Michael Clark <5285928+MikesGlitch@users.noreply.github.com>