Retry on error after the component has been unmounted

[tochoromero]

When a SWRV calls fails by default it will keep trying to fetch data. This is great, the problem is the retries keep happening even after the component has been unmounted.

I believe it just need to check for unmounted here

[darrenjennings]

@tochoromero sorry for the slow turnaround on responding to this, do you feel up to submitting a PR?

[adamdehaven]

This is resolved as of 1.0.1 🚀