chore: monorepo setup (#7175)

packages/discord.js/.gitignore

@@ -0,0 +1,25 @@
+# Packages
+node_modules/
+
+# Log files
+logs/
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Env
+.env
+test/auth.json
+test/auth.js
+docs/deploy/deploy_key
+docs/deploy/deploy_key.pub
+deploy/deploy_key
+deploy/deploy_key.pub
+
+# Dist
+dist/
+docs/docs.json