Add an option to remove YouTube subscriptions

[rootedetc]

Is your feature request related to a problem? Please describe.
Most of the time I watch YouTube on my phone using NewPipe. I often subscribe to new channels, and then I import my subscription list to yotter, but I also unsubscribe from a bunch of channels and forget which ones I unsubscribed from.

EDIT: I mainly watch yt on my phone during the week, that's why most of my activity is on there. This way I would be able to keep my yotter subscription list in sync with my NewPipe app.

Describe the solution you'd like
It would be nice, in this example, to have a simple button which would remove all subscriptions on yotter, for me to be able to import a fresh new list from eg. NewPipe. That way I don't have to remember which channels I subscribed to/unsubscribed from.

It's a simple quality of life solution, let me know if you feel like this shouldn't be added

[FireMasterK]

Perhaps an option like "Override current subscriptions" on the import screen might be a better way to implement it.

[pluja]

I think that the nicest solucion is overriding as @FireMasterK says, I will be working on it when I am more free of time and get back to work with yotter