feat: add keymaps for floating window

[tronikelis]

closes #172

I am up for discussion on how to call these settings and where to put them

fyi I tested the changes locally

Another approach would be to architecture settings like this:

win_mappings = {
	tags = {},
	scopes = {},
	loaded_scopes = {},
}

Not really sure which one's betteer

[tronikelis]

@cbochs friendly bump :))

[cbochs]

@Tronikelis apologies for the late reply. I was away on vacation for the past several weeks. Will take a look here soon 🙂

[tronikelis]

@cbochs I've changed the names based on your comments, please check if I got everything right

[tronikelis]

@cbochs could we get this merged?

[tronikelis]

@cbochs 🥲