[Feature]: Some toast errors in Manual Setup flow could be improved

[catch-21]

Describe the problem

1. this is missing period at end, it could be one sentence like "... at least 1000 satoshis, it was 5." Also, I think in Bitkit we should be using ₿ instead of "satoshis".

2. this is using btc unit, which we don't use in Bitkit. Change to sats or just ₿.

3. this occurs when connection details do not match an existing node (note the nodeid is valid but host and port are wrong)

Describe the solution

No response

Additional context

Bitkit version 0d67faa