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/compat/string/capitalize.mjs

@@ -0,0 +1,19 @@
+import { capitalize as capitalize$1 } from "../../string/capitalize.mjs";
+import { toString } from "../util/toString.mjs";
+//#region src/compat/string/capitalize.ts
+/**
+* Converts the first character of string to upper case and the remaining to lower case.
+*
+* @param string - The string to capitalize.
+* @returns The capitalized string.
+*
+* @example
+* const convertedStr1 = capitalize('fred') // returns 'Fred'
+* const convertedStr2 = capitalize('FRED') // returns 'Fred'
+* const convertedStr3 = capitalize('') // returns ''
+*/
+function capitalize(str) {
+	return capitalize$1(toString(str));
+}
+//#endregion
+export { capitalize };