add 'select all/non' buttons to the network selection ui

[thibaultmol]

I have like... 30+ wifi networks on my pc, when i Installed vorta it selected all of them by default but I only want to use my home network. thankfully I know that I can use arrow keys and space bar to easily go through that list and disable the others.
But maybe having select all and select none buttons would be nice. I tried to remember another UI where i've seen those buttons, but couldn't find it.
So yeah, something like this maybe? (i'm not a ui designer)

[yeyomontana]

Hi! I'd like to work on this issue if no one else is currently assigned.

[thibaultmol]

also (and this might be a seperate FR but mentioning it here just in case):
I don't like how it auto adds new wifi networks to the list as I connect to them. Currently this feature basically works as a denylist while I expect it to work as an allowlist (only with networks I give permission, should It do it. not auto add new networks)

[Gezo18]

Hi, I’m new to contributing and would like to work on this issue.
Could you guide me on where to start?