Configure .gitignore to exclude sensitive environment files

Author: johnconstant99-dev

.gitignore

@@ -1,10 +1,55 @@
+# Dependencies
 node_modules/
+package-lock.json
+yarn.lock
+
+# Environment variables - NEVER COMMIT THESE
 .env
+.env.local
+.env.*.local
+.env.keys
+.env.production.keys
+.env.staging.keys
+
+# Logs
+logs/
 *.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# OS files
 .DS_Store
-dist/
-coverage/
+Thumbs.db
+
+# IDE
 .vscode/
 .idea/
 *.swp
 *.swo
+*~
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Build outputs
+dist/
+build/
+
+# Temp files
+temp/
+tmp/
+.tmp/
+
+# Docker
+.dockerignore
+docker-compose.override.yml
+
+# Testing
+coverage/
+.nyc_output/
+
+# Misc
+.cache/