Messager, auto scroll after sending message

[raugbein]

Hi,

is it possible to auto scroll to bottom from the single_message.html after sending a message?

When I wrote a message to a user and all messages are more the one page, then the last message are not visible.

Example picture in attachment

[sebastian-code]

I noticed it @raugbein I've been looking for a solution, but this is not my strong side, so I haven't been able to solve it in a good fashion. I'm open to suggestions, or even a most preferred PR solving it, if you have one.