[QoL] Neutralizing Gas no longer suppresses the source's abilities

[innerthunder]

What are the changes?

A Pokemon with the ability Neutralizing Gas no longer suppresses their passive ability (and vice versa).

Why am I doing these changes?

In its current implementation, Neutralizing Gas suppresses all abilities on the playfield, including the source Pokemon's passive ability (if it has one). However, based on the description for Neutralizing Gas in Gen IX, the source Pokemon's other abilities should not be suppressed.

From a balance perspective, this allows Pokemon like Weezing to have a much larger pool of passive abilities to choose from without the fear of them being suppressed. It also facilitates Neutralizing Gas as a passive ability option for Pokemon with valuable primary Abilities that would otherwise be suppressed.

What did change?

• data/pokemon: Pokemon.canApplyAbility() is changed so that when it checks the Pokemon on the playfield for suppression ability attributes, the check does not include this.

Screenshots/Videos

Video Test:

• The player's Bulbasaur was given Neutralizing Gas with Intimidate as a passive via src/overrides
• All enemies were given Intimidate via src/overrides
• At the start of battle, Bulbasaur's Neutralizing Gas ability is shown, then Bulbasaur's Intimidate activates. The opposing Pidgey's Intimidate is suppressed by Neutralizing Gas and does not activate.

PokeRogue.-.Google.Chrome.2024-05-31.10-50-58.mp4

How to test the changes?

See the use of src/overrides in the test above. You can test with Neutralizing Gas as the passive ability instead, or switch Intimidate with any suppressable ability.

Checklist

• 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)
• Are the changes visual?
  • Have I provided screenshots/videos of the changes?