add overflow-auto to show all content in Modal

[DAcodedBEAT]

Description

[Provide a brief description of the changes in this PR]

noticed that lots of modals overflow past the max height, which makes the modal unusable.

relates to: #698

How Has This Been Tested?

[Describe the tests you ran to verify your changes]

opened devtools and added overflow-auto, which let me scroll to the remaining content

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[DAcodedBEAT]

@pablonyx Apologies for the tag, but I noticed you're active here! This is a small but extremely helpful fix - would it be possible to get it merged to improve the UI? Appreciate your time, and thanks in advance!