Fix timeout on show note pages

[AntonKhorev]

Also disables timeout on index pages that show user's notes because:

• note timeouts never worked correctly
• no working non-map layout timeouts were implemented on the website

I might add index timeout later, but that wouldn't be fixing things, that would be implementing something new.

Taken out of #4617 to keep that PR about fixing things that used to work.

[tomhughes]

I might add index timeout later, but that wouldn't be fixing things, that would be implementing something new.

I don't follow the logic here... You're adding :only so previously there would have been a timeout around the index action surely? It might not have rendered a nice error when it triggered but it would have protected the server from locking up a daemon for a long time while it processed the action surely which is the most important thing.