added state to iframe; fixed rendering for Modal, Popover, Popper, Tr…

[sfryan95]

Sean 5/3 added state to iframe; fixed rendering for Modal, Popover, Popper, Transition, Backdrop, and Dialog components

Co-authored-by: Heather Pfeiffer [email protected]
Co-authored-by: Jesse Wowczuk [email protected]
Co-authored-by: Zack Vandiver [email protected]
Co-authored-by: Sean Ryan [email protected]
Co-authored-by: Austin Alvarez [email protected]"

Please check the options that apply

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• Changes included in this pull request covers minimal topic
• I have performed a self-review of my code
• I have commented my code properly, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[ZackVandiver]

Nice, looks good.

[HM-Pfeiffer]

Impressive utilization of state for rendering Material UI components. Keep up the excellent work!