Proposed change

Add documentation for INKBIRD IAM-T2 Bluetooth 3-in-1 Indoor Air Quality Monitor support.

The IAM-T2 is a newer model that provides temperature, humidity, and CO2 measurements via Bluetooth advertisements. Unlike the IAM-T1, it reports temperature units directly in the advertisement data without requiring active scanning.

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 logos 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: Bump inkbird-ble to 1.1.0 to add support for IAM-T2 core#150158
• Link to parent pull request in the Brands repository: N/A (uses existing INKBIRD brand)
• 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.