Feature Request: add LND connect URL for REST API.

[ilyavf]

Is your feature request related to a problem? Please describe.
LND connect Url contains parameters to work with GRPC API and not REST.

Describe the solution you'd like
Add a new field and a copy button for LND Connect REST API.

Additional context

[WesleyCharlesBlake]

We need this !

[jamaljsr]

This should be pretty simple to implement. No objections from my end.

[bolatovumar]

What's the difference between the GRPC and REST lndconnect strings? Is it just the port? If not, can anyone point me to a resource which explains the difference? (I searched around but didn't find anything conclusive)