Proposed change

This PR enhances the Growatt Server integration documentation to provide better clarity on inverter compatibility and troubleshooting for users experiencing authentication issues.

The documentation now includes:

• Detailed inverter compatibility list: Specifies exact inverter models that support API token authentication across multiple series (MIC, MIN, MOD, MID), making it clear which users can benefit from the more stable API token method
• Improved troubleshooting section: Added an automation example to help users automatically manage the Growatt integration during Home Assistant restarts, preventing account lockouts due to rate limiting
• Better structured information: Moved prerequisites section earlier and clarified authentication method compatibility

These changes help users understand whether their specific inverter model supports API token authentication and provide actionable solutions to common authentication problems.

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:
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue: fixes #

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.