docs(homepage): consistently use the long-form of the registry details page

Author: travi

.github/settings.yml

@@ -2,7 +2,7 @@ _extends: .github
 repository:
   name: github-actions-node-ci
   description: CI scaffolder for JavaScript projects on GitHub Actions
-  homepage: https://npm.im/@form8ion/github-actions-node-ci
+  homepage: https://www.npmjs.com/package/@form8ion/github-actions-node-ci
   private: false
 branches:
   - name: master

package.json

@@ -10,7 +10,7 @@
   "author": "Matt Travi <npm@travi.org> (https://matt.travi.org/)",
   "repository": "form8ion/github-actions-node-ci",
   "bugs": "https://github.com/form8ion/github-actions-node-ci/issues",
-  "homepage": "https://npm.im/@form8ion/github-actions-node-ci",
+  "homepage": "https://www.npmjs.com/package/@form8ion/github-actions-node-ci",
   "runkitExampleFilename": "./example.js",
   "exports": "./lib/index.js",
   "main": "./lib/index.js",