chore(release): 1.4.0-alpha.3 [skip ci]

# [1.4.0-alpha.3](https://github.com/dapplets/mutable-web-monorepo/compare/@mweb/extension@1.4.0-alpha.2...@mweb/extension@1.4.0-alpha.3) (2024-09-09)

### Features

* introduce working with documents and multiple app instances (DAP-4737, DAP-4738, DAP-4739) ([#14](#14)) ([dcc6f18](dcc6f18))

apps/extension/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mweb/extension",
-  "version": "1.4.0-alpha.2",
+  "version": "1.4.0-alpha.3",
   "description": "Bridge to the Mutable Web",
   "scripts": {
     "build": "cross-env NODE_OPTIONS=--max-old-space-size=6144 webpack --config webpack.prod.js",