Feature Request: add lndconnect: to litd and tapd

[ZZiigguurraatt]

Is your feature request related to a problem? Please describe.

We have #484, but that only works for LND nodes.

Describe the solution you'd like

Would like to see a lndconnect: URI that can be quickly copy and pasted for litd and tapd as well.

Additional context

Not sure if a new URI prefix should be generated for those though? litdconnect: and tapdconnect: instead of lndconnect:?

litd is unique in that it has an integrated mode where lnd, loop, pool, etc all are available on the same GRPC TCP port (https://docs.lightning.engineering/lightning-network-tools/lightning-terminal/command-line-interface#integrated-mode). Possibly lndconnect: could still be valid if only trying to use lnd GRPC commands, but a more specific prefix like litdconnect: may provide more clarity on what the macaroon is actually capable of doing.