Media Grid missing 'View' link

[adamsilverstein]

In the list view, its easy to view a media attachment, just hover over the row and click the View link.

The grid view should have a similar link, probably a 'View' button in the detail modal.

[adamsilverstein]

add a View button to the media grid detail modal

[adamsilverstein]

in 28977.diff​:

• add a View button to the media grid detail modal

Input on the placement welcome!

Currently looks like this:

[SergeyBiryukov]

In 29262:

Media Grid: Add a View button to Attachment Details modal.

props adamsilverstein.
fixes #28977.

[helen]

Should not be a button, going to reopen to figure the UI out better.

[ericlewis]

We shouldn't add an event click callback for anchors, lest we reinvent the browser (see 28952)

[helen]

In 29263:

Move the "view" link for attachment details to the sidebar and use more specific language. Removes an unnecessary JS handler. fixes #28977.