Fixes fast travel overmap UI when failing to reach destination

[ShnitzelX2]

Summary

Bugfixes "Fixes fast travel overmap UI when failing to reach destination"

Purpose of change

Fixes #76351

Describe the solution

Added a line I missed. Also added m_warning to traveling error messages and fixed a grammar typo.

Describe alternatives you've considered

Testing

Made sure the save provided worked, checked the changed messages.

Additional context