Feature request: make it easier to open a live stream at the source

[ajlevitz]

Problem: When you want to open a live stream that's currently on the wall (e.g., to confirm that it is in fact over), you have to scroll to find it on the full list.

Potential solutions:

• It could be considered solved with https://github.com/chromakode/streamwall/issues/54 (if the solution there ends up being putting the live streams in a new section at the top of the list)
• Add a button on the cell that, when clicked, opens a new tab
• Make the code clickable in the Google Docs way, where it first opens up a little preview box where you then click to actually open the tab
• Make the code clickable in the "right click" way where you first get a list of options (I think this one is the most scalable; we could also move the two buttons that I as a normal curator am never supposed to use into this list)

Acceptance criteria:

• Doesn't interfere with typing or deleting codes
• Doesn't interfere with moving streams
• Doesn't open in the same page