Fix checkboxes on login

[skjnldsv]

I removed all lines about radio (since it's not used in the installation page nor login) and removed everything concerning the default checkbox (not white) since it's not used either.

Before / After

[jancborchardt]

Looks good! Only one thing: Is the checkmark black or transparent? Previously that part was transparent, and it will look nicer (also with themes) cause the background color shines through.

[skjnldsv]

It's black. It was easier to do.
The other possibility is to but a white background on the svg and a transparent checkbox and set an overflow hidden on the checkbox. Like to we will have a transparent checkbox, but we won't be able to use css to change the colour (in case of someone wants to customise its checkbox) 😃

[skjnldsv]

Please merge #3341 before continuing this pr! :)

[jancborchardt]

@skjnldsv can we merge this first, because it fixes an important bug? The other thing is polishing.

[skjnldsv]

I would prefer to merge the transparent checkbox and then I will update this pr accordingly :)

[jancborchardt]

@skjnldsv can you update this? :)

Also, on the login page it’s a bit strange: The »Stay logged in« text is white and on hover slightly transparent. The checkbox however is slightly transparent and then on hover white. The other way around. Can you adjust it so it fits the text?

[skjnldsv]

@jancborchardt Updated.
I did a quick cleanup of the quotes too.

[skjnldsv]

[skjnldsv]

@nextcloud/designers Please review! 🚀

[MorrisJobke]

Tested and works 👍