[Feature] Wonder Room

[Fontbane]

What are the changes?

• Implements the move Wonder Room, which swaps Defense and Sp. Def stats of all battlers for 5 turns

Why am I doing these changes?

• I just think it's neat
• Could be used for challenges, mystery encounters, or in the endless rework

What did change?

• Added Wonder Room arena tag type
• Added a check in getBattlerStat for this, which swaps the stats if needed
• Added localization entries for Wonder Room's arena flyout and tag add/remove messages
• Changed from Unimplemented to Partial, in case I forgot something

Screenshots/Videos

Used Body Press without Wonder Room (going off Chansey's tiny defense stat of 7)

Using Wonder Room

Used Body Press with Wonder Room (going off Chansey's bigger special defense stat of 17)

How to test the changes?

• Test this out with a mon that has a sizable disparity in Def and SpDef stats, or Atk and SpAtk versus a balanced opponent
• Body Press and Psyshock may be useful in testing
• I'll write a unit test if asked

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 considered writing automated tests for the issue?
• 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?

[torranx]

Linking because of relevance: #2699

[xsn34kzx]

Linking because of relevance: #2699

I would say to put a pin in this until I can finish up this PR since this would allow the swapping process to be way easier (with examples from moves like Speed Swap when I get around to it) without having to manually swap every time out of necessity.

[Fontbane]

Someone else can take care of this, has to be reworked anyway