chore: bump version to 0.2.1 so a reloaded extension is recognizable

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "Outlier Saver",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Сохраняет видео YouTube с высоким outlier score от VidIQ.",
   "permissions": ["storage"],
   "background": { "service_worker": "src/background.js", "type": "module" },