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/xorWith.js

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+const require_differenceWith = require("./differenceWith.js");
+const require_intersectionWith = require("./intersectionWith.js");
+const require_unionWith = require("./unionWith.js");
+//#region src/array/xorWith.ts
+/**
+* Computes the symmetric difference between two arrays using a custom equality function.
+* The symmetric difference is the set of elements which are in either of the arrays,
+* but not in their intersection.
+*
+* @template T - Type of elements in the input arrays.
+*
+* @param arr1 - The first array.
+* @param arr2 - The second array.
+* @param areElementsEqual - The custom equality function to compare elements.
+* @returns An array containing the elements that are present in either `arr1` or `arr2` but not in both, based on the custom equality function.
+*
+* @example
+* // Custom equality function for objects with an 'id' property
+* const areObjectsEqual = (a, b) => a.id === b.id;
+* xorWith([{ id: 1 }, { id: 2 }], [{ id: 2 }, { id: 3 }], areObjectsEqual);
+* // Returns [{ id: 1 }, { id: 3 }]
+*/
+function xorWith(arr1, arr2, areElementsEqual) {
+	const union = require_unionWith.unionWith(arr1, arr2, areElementsEqual);
+	const intersection = require_intersectionWith.intersectionWith(arr1, arr2, areElementsEqual);
+	return require_differenceWith.differenceWith(union, intersection, areElementsEqual);
+}
+//#endregion
+exports.xorWith = xorWith;