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/lint.yaml

@@ -0,0 +1,20 @@
+---
+name: Lint
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install the latest version of rye
+        uses: eifinger/setup-rye@v4
+        with:
+          enable-cache: true
+      - name: Sync dependencies
+        run: rye sync
+      - name: Lint (pylint/rye lint)
+        run: rye run check