Update package.json

package.json

@@ -4,6 +4,7 @@
     "db:create": "node scripts/commands/database/create.js",
     "db:matrix": "node scripts/commands/database/matrix.js",
     "db:update": "node scripts/commands/database/update.js",
+    "db:export": "node scripts/commands/database/export.js",
     "db:cleanup": "node scripts/commands/database/cleanup.js",
     "cluster:load": "node scripts/commands/cluster/load.js",
     "playlist:validate": "node scripts/commands/playlist/validate.js",