Throw some initial version of code at the wall for the tabbed character sheet

module/handlebarHelpers/toClasses.mjs

@@ -0,0 +1,14 @@
+/**
+ * Allows converting an object of <class names, boolean-likes> into an HTML-compatible class list.
+ *
+ * @param {Record<string, any>} obj The object of class names to boolean-like values for if that class should be included.
+ */
+export function toClasses(obj = {}) {
+	let classes = [];
+	for (const [ klass, include ] of Object.entries(obj)) {
+		if (include) {
+			classes.push(klass);
+		};
+	};
+	return new Handlebars.SafeString(classes.join(` `));
+};