dweb:/ipns/libp2p.io false-negative error

[lidel]

Seems there is a regression opening dweb:/ipns/libp2p.io when using IPFS companion in Firefox does not work as expected.

We don't promote use of dweb: URI at the moment, but hould be an easy fix (probably regex needs updating).

Also, ipns://almonit.eth / ipns://almonit.eth.link fail in Firefox, could be related those got fixed in v2.17.1 :-)

[lidel]

We abandoned dweb scheme for now, as it is not compatible with web security model on the web.

We switched to native router in #999 so it is no longer in Companion's scope.
With go-ipfs 0.8.0, opening dweb:/ipns/libp2p.io produces:

uri query parameter scheme must be ipfs or ipns: %!s(<nil>)

This should be enough as a deprecation warning, pointing people to move to ipfs:// and ipns://