Eugene Popov authored Oct 18, 2022 and Christoph Cullmann committed Oct 18, 2022

This MR adds some useful content to the welcome screen:
* link to home page
* link to information about the application
* link on how to join the development
* link to handbook

Also, if the window isn't wide enough to fit this panel, then it's hidden (i.e. the UI is still responsive).