Use more of the available screen space (especially in the map view)

[wolph]

Is your feature request related to a problem? Please describe. Currently the map view is a bit too small to fit my entire network, and that's mostly due to inefficient use of screen space.

Describe the solution you'd like

The main div currently uses a container class, if it would use container-fluid it would look like this instead: https://github.com/yllibed/Zigbee2MqttAssistant/blob/7b1877a40d9d37c5a18e33632ecf85e6eda09a95/Zigbee2MqttAssistant/Views/Shared/_Layout.cshtml#L38

It would look like this:

The only issue is that it would have to be specific for the map view. For the other pages a little bit of extra space wouldn't hurt, but container-fluid would be a bit much.

Describe alternatives you've considered

I could try a usercss... but I think more people would benefit from this.

Additional context