Matomo web component

Move Matomo related initialization to its own web component. Use this web component in App-shell.

App-shell has two new parameters: matomo-url and matomo-site-id. These are required for tracking, but tracking is still optional.

packages/matomo/package.json

@@ -32,15 +32,14 @@
   },
   "scripts": {
     "clean": "rm dist/*",
-    "build": "npm run build-local",
     "build-local": "rollup -c",
     "build-dev": "rollup -c --environment BUILD:development",
     "build-prod": "rollup -c --environment BUILD:production",
     "build-demo": "rollup -c --environment BUILD:demo",
     "build-test": "rollup -c --environment BUILD:test",
     "i18next": "i18next-scanner",
-    "watch": "npm run watch-local",
-    "watch-local": "rollup -c --watch",
+    "watch": "rollup -c --watch",
+    "watch-local": "yarn run watch",
     "watch-dev": "rollup -c --watch --environment BUILD:development",
     "test": "npm run build-test && karma start --singleRun"
   }