fix: Ensure all package.json files have a link to the repo (#807)

Author: Ari Chivukula

packages/dialog/package.json

@@ -10,6 +10,10 @@
     "material design",
     "dialog"
   ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/material-components/material-components-web-react.git"
+  },
   "dependencies": {
     "@material/dialog": "0.43.0",
     "@material/dom": "^0.41.0",

packages/top-app-bar/package.json

@@ -12,6 +12,10 @@
     "top app bar",
     "topappbar"
   ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/material-components/material-components-web-react.git"
+  },
   "dependencies": {
     "@material/react-ripple": "^0.9.0",
     "@material/top-app-bar": "^0.44.0",