Make Invert Send/New Line Behavior setting client specific

On PC, I’m used to doing Enter for send, and Shift+Enter for new line.

On my tablet, however, the touch keyboard won’t allow me to send Shift+Enter, so I enabled the “Invert Send/New Line Behavior” setting and it solved my issue!

However, this setting appears to sync between clients, leading to accidental sends after switching between clients.

Bounding this setting to the client instead of syncing it would fix this issue, and should be pretty easy to implement. A middle ground could be a synced default and a local, persistent override.

Ideally, we would only have to configure this behavior once per device and not have to keep mental track of which client we used last or go to the settings to change each time we open the website.