The new review request infobox that was recently added was a bit bulky

and was positioned pretty awkwardly, making it hard to navigate through

the dashboard. It used the standard infobox positioning, causing it to

appear directly above or below the entry for the review request, and

when it showed up it took a good chunk of the page. A lot of the content

in there wasn't really that useful, and took more space than needed.
This introduces a new redesign for the infobox. This design does away

with the "last 3 reviews" part and adds some information on the

repository, timestamps, number of Ship Its, and a link to the diff. It

also appears off to the side of the entry in the dashboard, restoring

the ability to move your mouse up/down the dashboard without the infobox

getting in the way.
The top of the infobox features the summary of the review request (or

its accessible draft), with the review request display ID and, if

relevant, the state (draft, submitted, discarded -- of which we only

show one in the infobox, in that order) in the top-right.
Below that is the user who owns the review request, followed by the

repository, and then the last updated time. Both the repository and last

updated time information will expand on hover, showing additional

information. For the repository, this will show the commit and branch

(if both are empty then the repository won't offer a hover panel). The

last updated timestamp's panel will show the creation time and the

absolute date/time it was last updated.
Below that is a portion of the description. This is now rendered as

Markdown, as needed. The very bottom of the description appears faded,

but on hover the fade will go away and the content will be scrollable.
Below that is a status panel showing the number of Ship Its (if there

are any), the number of open issues (shown if there are any issues of

any state on the review request), and the number of fixed/discarded

issues (but only if there are any). Beside that is a link to the review

request page listing the number of reviews, and then a link to the diff

listing the revision. If there are open issues, the panel will have the

same background color as the issue banner. If the change has Ship Its

but no open issues, then the banner will be green. Otherwise, it's a

light grey.

Tested with all status labels (draft, submitted, discarded), and without.
Tested with summaries and descriptions of various lengths.
Tested with and without repositories, and with/without commit and branch

information.
Tested hovering over the description area with different description widths

and with the various scrollbar modes macOS allows (always show/taking width

and on-demand/no width).
Tested with/without Ship Its and open/fixed/dropped issues.
Tested that draft review requests had their state in the infobox instead of

the public review request state.
Tested on all the relevant datagrids and on the review request page (with

the Depends On entries).