Add Air Purifier MA2 (zhimi.airpurifier.ma2) to xiaomi_miio

[kirill578]

Proposed change

adding missing docs

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • I've opened up a PR to add logo's and icons in Brands repository.
• Added documentation for a new feature I'm adding to Home Assistant (next branch).
• Removed stale or deprecated documentation.

Additional information

• Link to parent pull request in the codebase: Xiaomi Air Purifier S2 illuminance sensor support core#89208
• Link to parent pull request in the Brands repository: n/a
• This PR fixes or closes issue: n/a

Checklist

• This PR uses the correct branch, based on one of the following:
  • I made a change to the existing documentation and used the current branch.
  • I made a change that is related to an upcoming version of Home Assistant and used the next branch.
• The documentation follows the Home Assistant documentation standards.

[rytilahti]

LGTM, thanks! Can be merged as soon as the parent gets merged. I hope we can get rid of these manual definitions in the future. Related PR is #21861