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/startCase.mjs

@@ -0,0 +1,27 @@
+import { words } from "./words.mjs";
+//#region src/string/startCase.ts
+/**
+* Converts the first character of each word in a string to uppercase and the remaining characters to lowercase.
+*
+* Start case is the naming convention in which each word is written with an initial capital letter.
+* @param str - The string to convert.
+* @returns The converted string.
+*
+* @example
+* const result1 = startCase('hello world');  // result will be 'Hello World'
+* const result2 = startCase('HELLO WORLD');  // result will be 'Hello World'
+* const result3 = startCase('hello-world');  // result will be 'Hello World'
+* const result4 = startCase('hello_world');  // result will be 'Hello World'
+*/
+function startCase(str) {
+	const words$1 = words(str.trim());
+	let result = "";
+	for (let i = 0; i < words$1.length; i++) {
+		const word = words$1[i];
+		if (result) result += " ";
+		result += word[0].toUpperCase() + word.slice(1).toLowerCase();
+	}
+	return result;
+}
+//#endregion
+export { startCase };