Renamed PUBLIC_CONVEX_URL to VITE_CONVEX_URL

Author: bikramswain1992

docs/guides/development/integrations/databases/convex.mdx

@@ -164,11 +164,11 @@ With [Convex](https://www.convex.dev/), you can build a backend with a provided
         throw new Error('Add your Clerk Publishable Key to the .env file')
       }
 
-      if (!process.env.PUBLIC_CONVEX_URL) {
-        throw new Error('Missing PUBLIC_CONVEX_URL in your .env file')
+      if (!process.env.VITE_CONVEX_URL) {
+        throw new Error('Missing VITE_CONVEX_URL in your .env file')
       }
 
-      const convex = new ConvexReactClient(process.env.PUBLIC_CONVEX_URL)
+      const convex = new ConvexReactClient(process.env.VITE_CONVEX_URL)
 
       ReactDOM.createRoot(document.getElementById('root')!).render(
         <React.StrictMode>