Improve UI: * Add more color to the log messages * fix scrollbar issues * change cursor on the sidebar * Logging: Change filter buttons
Improve UI:
* Add more color to the log messages
* fix scrollbar issues
* change cursor on the sidebar
* Logging: Change filter buttons

uzh/signal-collect,mageru/signal-collect,hicolour/signal-collect,uzh/signal-collect,hicolour/signal-collect,mageru/signal-collect