feat: Add polyfill for Array.prototype.toSpliced method

web/app/components/browser-initializer.tsx

@@ -1,5 +1,15 @@
 'use client'
 
+// Polyfill for Array.prototype.toSpliced (ES2023, Chrome 110+)
+if (!Array.prototype.toSpliced) {
+  // eslint-disable-next-line no-extend-native
+  Array.prototype.toSpliced = function <T>(this: T[], start: number, deleteCount?: number, ...items: T[]): T[] {
+    const copy = this.slice()
+    copy.splice(start, deleteCount ?? copy.length - start, ...items)
+    return copy
+  }
+}
+
 class StorageMock {
   data: Record<string, string>