Implement functionality on view video page about cacophony-browse

[mjs]

@arthurmcgregor

• Agreed that adding "me" for new tags is a nice to have. I've added #68 to track this.
• The tag stop time thing was just a convenience in case you wanted to tag a particular part of the recording. 10s from the end is often when the interesting stuff stopped happening. Tagging is going to change quite a bit soon so we probably don't need this.
• I've just tried it out on my mobile and although it's not perfect it's actually not too bad. Agreed that this can wait.
• The current no recording handling is fine.

Closing this issue!

[mjs]

Nice work!

[arthurmcgregor]

@mjs I think this can probably be closed, at least for v1 release. With regard to the outstanding items:

• Add 'Me' if tag added by users -> nice to have but not essential?
• Set tag stop time to duration - 10s -> I never knew why this was in the original code!! Maybe not needed?
• Mobile view -> might not be the tidiest but I think it's functional
• Handle no recording -> an error is displayed as part of global messaging... not sure how else to handle it except perhaps redirect back to search page?