Add a runtime log view

[MartinBriza]

A great suggestion brought up by yeled on IRC: we should have a way to view logs inside the app on runtime, there are still some people with connection issues and it's hard to replicate other peoples' setups, especially when it seems there's nothing abnormal. We should've had this a long time ago, really. Thanks!

Next: logging should be more verbose and conscise. Note to self: If not implemented as a part of this ticket, create a new one just for that.

[MartinBriza]

This is now partially implemented but it sucks big time. Note to self: you have wip branches on firefly called better-logging and translations-improved-strings (not directly related but may be useful) that definitely should not be pushed at this stage