Separate between 0 path and max path cannot be calculated

[louilinn]

Currently when there is no path it says the path cannot be calculated. We need to distinguish between 0 value paths and errors in calculating paths.

In send view.

Related PR for this problem: #463
Before this the max amount was loading forever or inaccurately saying 0 maybe

[louilinn]

We should also change the message to something like: it takes too long to calculate the max path.

Lucia should have input on this too when she is back

[louilinn]

Notes:

Message suggestions
"0" should we explain why? link to FAQ if path is 0
"The path takes to long to calculate" because of cmplexity
"The transfer amount requires too many steps in one transaction"

Check the api code, where is the 52 step limitation, what is returned in this case?

[louilinn]

Current error message for too high amounts being attempted to be sent

[louilinn]

The new pathfinder will respond in more ways and those should be treated here too.
@llunaCreixent will elaborate on these scenarios

@triaslucia this is the issue for the Send Confirm view that is mentioned in our meeting notes as your task to specify texts for.