feat: Implement the promoter event creation

- Promoter can now create an event in draft mode
- Place is found based on address and long/lat are automatically
  deducted from it
- Slug is forged using the *slug* npm package instead of custom code

package.json

@@ -13,7 +13,8 @@
     "lucide": "^0.542.0",
     "qrcode": "^1.5.4",
     "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react-dom": "^18.3.1",
+    "slug": "^11.0.0"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4.1.4",