Allow users to bookmark a docket, document, or comment with notes

[jakerella]

Problem Description

I would like to be able to return to my previous research by easily tracking the dockets, documents, and comments I am interested in, along with a note as to why I care about a given item. Additionally, I might want to organize those bookmarks into logical groupings, like for a particular case or legal action.

Possible Workarounds

I could just use my browser bookmarks, but those don't have notes. I could also use a separate document.

Possible Solutions

Need to track these in a new table and then link to the user account, but see the additional context!

Additional Context

Ultimately, as a user, I would like to be able to "share" these bookmarks, or possibly the grouping of bookmarks. (see issue #14)