Remove name in Minecraft Server config entry

[elmurato]

Proposed change

CONF_NAME is removed from the config entry.
The user will now not be asked to enter a name while adding a new device.
Instead of the name (default: "Minecraft Server"), the server address will be used instead (config flow title and coordinator name).
If wanted, the user can still manually rename the device afterwards.

Type of change

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

Additional information

• This PR fixes or closes issue: n.a.
• This PR is related to issue: n.a.
• Link to documentation pull request: Remove server name in minecraft_server.markdown home-assistant.io#37641
• Link to developer documentation pull request: n.a.
• Link to frontend pull request: n.a.

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• 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

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

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[home-assistant]

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[thecode]

Thanks @elmurato 👍