fix: better handling of whiteship signaller input #25531
Merged
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What Does This PR Do
This PR fixes issues with the whiteship signaller, where pressing cancel on the TGUI input for naming the port would still accidentally create a port. It also fixes an issue where pressing cancel on the TGUI input for choosing the port direction would not delete the port (we create the port that early because we want to use its ability to determine all the affected turfs to see if there's anything in them). It also adds more descriptive messages for when any step of the process is cancelled. Fixes #25530.
Why It's Good For The Game
Bugs bad.
Images of changes
output.mp4
Testing
Spawned in, verified cancelling at every step worked. Also tested that emptying the text field also cancelled placement (not in the video).
Changelog
馃啈
fix: The whiteship signaller now properly handles cancelling at any step.
/:cl: