fix: prevent duplicate printAppInfo output in StrictMode

React StrictMode double-invokes effects in development, causing the
app info banner to print twice. Add a module-level guard so it only
prints once.

Author: gabitoesmiapodo

src/utils/printAppInfo.ts

@@ -1,6 +1,10 @@
 import { name, version } from '../../package.json'
 
+let printed = false
+
 export function printAppInfo() {
+  if (printed) return
+  printed = true
   // if running on server (NODE_ENV is defined), do nothing
   if (typeof process !== 'undefined' && process.env?.NODE_ENV) {
     return