export/import of savegame

[Pertex]

It would be nice to have the possibility to export savegames. Its saver than to save the game in the localstorage

I am doing it with this code

	squiffy.story.save= function() {
        const localStorageData = JSON.stringify(localStorage, null, 2); 
        const blob = new Blob([localStorageData], { type: "application/json" });

		const url = URL.createObjectURL(blob);
		const link = document.createElement("a");
		link.href = url;
		link.download = "savegame.json"; 
		document.body.appendChild(link);
		link.click();

		document.body.removeChild(link);
		URL.revokeObjectURL(url);
    };

	squiffy.story.load= function() {
		const input = document.getElementById('fileInput');
		if (!input.files.length) {
			squiffy.story.toggleInputBox();
			alert("Choose a file and click the button 'LOAD'");
			return;
		}
		const file = input.files[0];
		const reader = new FileReader();
		reader.onload = function (event) {
			try {
				const data = JSON.parse(event.target.result);
				// Optional: Vorher localStorage leeren
				 localStorage.clear();
				for (const key in data) {
					if (data.hasOwnProperty(key)) {
						localStorage.setItem(key, data[key]);
					}
				}

				alert("Spielstand erfolgreich wiederhergestellt.");
				squiffy.story.toggleInputBox();
				location.reload();
			} catch (error) {
				alert("Fehler beim Einlesen der Datei: " + error.message);
			}
		};
		reader.readAsText(file);
	}