Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/es-toolkit/dist/array/remove.d.ts

@@ -0,0 +1,20 @@
+//#region src/array/remove.d.ts
+/**
+ * Removes elements from an array based on a predicate function.
+ *
+ * This function changes `arr` in place.
+ * If you want to remove elements without modifying the original array, use `filter`.
+ *
+ * @template T
+ * @param arr - The array to modify.
+ * @param shouldRemoveElement - The function invoked per iteration to determine if an element should be removed.
+ * @returns The modified array with the specified elements removed.
+ *
+ * @example
+ * const numbers = [1, 2, 3, 4, 5];
+ * remove(numbers, (value) => value % 2 === 0);
+ * console.log(numbers); // [1, 3, 5]
+ */
+declare function remove<T>(arr: T[], shouldRemoveElement: (value: T, index: number, array: T[]) => boolean): T[];
+//#endregion
+export { remove };