Add ability to browse details for historical moderations and user actions

[s3ththompson]

Currently the record modal only shows moderation details for the first moderation. For example, it's impossible to see the reason behind a previous moderation.

(Similarly, it's impossible to view previous user actions)

We should add a new modal for Moderations. Clicking a moderation at the bottom of the Record modal should open up a new Moderation modal with details.

We should also add a new modal for UserActions. Clicking a user action at the bottom of the User modal should open up a new User Action modal with details.

This issue will include:

• creating a new intercepting route for /moderations/:id and /user-actions/:id
• creating a new ModerationDetail component and a new UserActionDetail component
• thinking through whether we should rename the Moderations page to Records to avoid confusion. (Right now, it's more of a Records table, sorted by most recent moderation)

[gladyshcodes]

It seems like Reasoning is the only thing missing in moderation/user action tables at the bottom of modals. Alternatively, we could simply add it to the table and data will be complete

Or do you anticipate having more and more data, making it impossible to keep it all in the table? And then eventually keeping table just as a way to navigate to needed moderation/user action in history?

UPDATE: already implemented as in spec