[Bug] Fix #5422 Neutralizing Gas and Legendary Weather Abilities Persist After Flee

[emdeann]

What are the changes the user will see?

Neutralizing Gas and Primordial Sea/Desolate Land/Delta Stream will clear when the user runs away from an enemy with these abilities.

Why am I making these changes?

Fixes #5422

What are the changes from a developer perspective?

All I'm doing is adding a call to applyPreLeaveFieldAbAttrs for each enemy on the field on flee, along with updating relevant tests with a case for this situation. The call is in a new loop preceding everything else because PreLeaveField should apply before "escaping" (i.e. before the flee success message is played - someone can test this on cart if they want, but im 99% certain as this is how all other interactions with these abilities work).

I'm not using the leaveField() method because it does some extra housekeeping we don't want here (particularly, it would reset the sprite immediately instead of the nice fade animation we have now)

Screenshots/Videos

2025-03-08.00-26-11.mp4

How to test the changes?

Automated tests or overrides with any of the affected abilities

Checklist

• I'm using beta as my base branch
• There is no overlap with another PR?
• The PR is self-contained and cannot be split into smaller PRs?
• Have I provided a clear explanation of the changes?
• Have I tested the changes manually?
• Are all unit tests still passing? (npm run test)
  • Have I created new automated tests (npm run create-test) or updated existing tests related to the PR's changes?
• Have I provided screenshots/videos of the changes (if applicable)?
  • Have I made sure that any UI change works for both UI themes (default and legacy)?

Are there any localization additions or changes? If so:

• Has a locales PR been created on the locales repo?
  • If so, please leave a link to it here:
• Has the translation team been contacted for proofreading/translation?