Clean up modals

[emyl3]

Background

We have modals that have slightly different styling... For example:

Result details

Pending organization edit form

Support admin - unarchive patient

Support admin - delete facility

Unsupported state

Duplicate patient

We are not able to use the Trussworks modals (details in this #7648).

Action requested

• Review with design to make sure all modals are the correct design and conform to USWDS modals guidelines.
• Update all modals to use our version of the Modal component.
• Clean up Modal styles to be modular and not in prime_styles file

Acceptance Criteria

• See above

Additional context

• Adding storybooks for the different types of Modals could be helpful!