Initial prototype of the V3 manifest extension (#4357)

* Initial prototype of the V3 manifest extension

* Make sure the content script is only injected once

* Implement addNote button

* More separation work for tasks, implement archive and update note

* Add back missing functionality, add guide to install Extensions

* Revert v2 changes

---------

Co-authored-by: Thomas Rogers <Podginator@gmail.com>

pkg/extension-v3/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "omnivore-extension",
+  "version": "1.0.0",
+  "description": "browser extension for omnivore",
+  "scripts": {
+    "build": "env webpack --mode production",
+    "watch": "webpack --mode development --watch"
+  },
+  "devDependencies": {
+    "@types/chrome": "^0.0.268",
+    "@types/dompurify": "^3.0.5",
+    "@types/firefox-webext-browser": "^120.0.4",
+    "clean-webpack-plugin": "^4.0.0",
+    "copy-webpack-plugin": "^12.0.2",
+    "dotenv-webpack": "^8.1.0",
+    "ts-loader": "^8.0.0",
+    "typescript": "^4.0.0",
+    "webpack": "^5.0.0",
+    "webpack-cli": "^4.0.0"
+  },
+  "dependencies": {
+    "nanoid": "^4.0.2",
+    "uuid": "^8.3.2"
+  }
+}