added init files

frontend/.gitignore

@@ -1,23 +1,45 @@
-# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
-
-# dependencies
-/node_modules
+# Dependencies
+node_modules/
 /.pnp
 .pnp.js
 
-# testing
+# Testing
 /coverage
 
-# production
+# Production
 /build
 
-# misc
+# Misc
 .DS_Store
 .env.local
 .env.development.local
 .env.test.local
 .env.production.local
+.env
 
+# Logs
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local