Add .gitignore file with common exclusions

.gitignore

@@ -0,0 +1,43 @@
+# Dependencies
+node_modules/
+jspm_packages/
+
+# Build and Distribution
+dist/
+lib-cov/
+coverage/
+*.lcov
+.cache/
+.parcel-cache/
+.turbo/
+*.lock
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Environments (Sensitive Variables)
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Editors and System
+.DS_Store
+Thumbs.db
+.vscode/
+!.vscode/extensions.json
+.idea/
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Tests and Tools
+.nyc_output
+.eslintcache
+.stylelintcache