Fix releases (#70)

* Remove release action in favor of publish

* Also publish to GHPR

Author: dgreif

Diff for: .github/workflows/release.yml

@@ -13,7 +13,8 @@
     "build": "rollup -c",
     "pretest": "npm run build",
     "test": "karma start karma.config.js",
-    "prepublishOnly": "npm run build"
+    "prepublishOnly": "npm run build",
+    "postpublish": "npm publish --ignore-scripts --@github:registry='https://npm.pkg.github.com'"
   },
   "keywords": [
     "clipboard",