Make Habitica setup more user-friendly

[tr4nt0r]

Proposed change

The Config Flow for setting up the Habitica integration is now a lot more user-friendly. Users can now user their normal username/e-mail and password combination they also use to login to Habitica, instead having to handle with their User ID and API Token. The Config Flow then stores the User ID and API Token which are returned in the JSON response of the login endpoint.

Because Habitica is open source, users could want to connect to a different instance than the official Habitica, even to a self-hosted one. Therefore users can choose between "Login to Habitica" and an "Advanced Configuration". The Advanced Configuration still offers the same options as before, like using User ID and API Token and the URL to point to a different instance. Just an option to disable SSL verification was added, in case it is an instance with a self-signed certificate.

May also need a Documentation PR.

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)
• [x] Code quality improvements to existing code or addition of tests

Additional information

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

Checklist

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

To help with the load of incoming pull requests:

• [ ] I have reviewed two other open pull requests in this repository.

[home-assistant[bot]]

Hey there @asmfreak, @leikoilja, mind taking a look at this pull request as it has been labeled with an integration (habitica) you are listed as a code owner for? Thanks!

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[tr4nt0r]

damn, messed up the merge. again. 🙄 I'm so sorry for all the unwanted notifications.