Code quality improvements (v0.2.0-pre-alpha) (#5)

* Bumped version to 0.2.0
* Implemented Github Actions for HACS, Hassfest, Linting
* Improved code quality (compliant with the linter now)
* Added link to the finish page to automatically login on the same device/browser

.github/workflows/hacs.yaml

@@ -0,0 +1,22 @@
+---
+name: hacs
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: HACS validation
+        uses: hacs/action@main
+        with:
+          category: "integration"
+          ignore: brands
+