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/string/reverseString.js

@@ -0,0 +1,19 @@
+//#region src/string/reverseString.ts
+/**
+* Reverses a given string.
+*
+* This function takes a string as input and returns a new string that is the reverse of the input.
+*
+* @param value - The string that is to be reversed.
+* @returns The reversed string.
+*
+* @example
+* const reversedStr1 = reverseString('hello') // returns 'olleh'
+* const reversedStr2 = reverseString('PascalCase') // returns 'esaClacsaP'
+* const reversedStr3 = reverseString('foo 😄 bar') // returns 'rab 😄 oof'
+*/
+function reverseString(value) {
+	return [...value].reverse().join("");
+}
+//#endregion
+exports.reverseString = reverseString;