Entry- and Exit-Gateway can be identical

[wiiinnie]

Describe the issue
When choosing the same country as entry and exit location you can end up using the same node. So a 2-hop basically turns into a 1-hop vpn

Expected behaviour
Expect to have different Entry- / Exit-Gateways selected

Stack Traces

Steps to Reproduce
Steps to reproduce the behaviour, if you're familiar with BDD syntax, please write it in this style:

• Choose country A as entry
• Choose country A as exit
• Connect and disconnect until you end up with the same gateway

An example:

Screenshots

Which area of Nym were you using?

• NymVPN Version 0.1.4 (20240530.061606) MAC

Additional context

[octol]

Yep, from the system perspective there is no reason a gateway can't act as both entry and exit for the same client. But I think we want to guard against this happening in the gateway selection process in the vpn client