Cleanup: Updated .gitignore and removed temporary files

Author: harvy4002

.github/workflows/github-pages.yml

@@ -3,4 +3,8 @@ _site/
 .jekyll-cache/
 .jekyll-metadata
 Gemfile.lock
-.vs/
+.vs/
+vendor/
+.bundle/
+.vscode/
+.DS_Store