Change server port to 3000

Updated the server configuration to use port 3000 instead of the previous port.
[skip gpt_engineer]

vite.config.ts

@@ -6,11 +6,11 @@ import { componentTagger } from "lovable-tagger";
 // https://vitejs.dev/config/
 export default defineConfig(({ mode }) => ({
   server: {
-    port: 8080,
+    port: 3000,
     host: true
   },
   preview: {
-    port: 8080,
+    port: 3000,
     host: true
   },
   plugins: [