Support requesting translations for multiple integrations in one request

[bdraco]

Proposed change

Requires home-assistant/core#71979

This fixes an issue where the translations didn't appear right away when there are a large number of discoveries.

Onboarding calls look much cleaner now vs home-assistant/core#71979 (comment)

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[bdraco]

Need to figure out how to memorize that is already has them since opening the flow requests again

[bdraco]

After reverting to dev, that seems like it is an existing issue. AFAICT, They are unconditionally loaded even if they have been fetched before.