frontend: Make index previews clickable as well

frontend/src/main.ts

@@ -19,20 +19,23 @@ window.addEventListener("load", () => {
 	for (const op of document.querySelectorAll('.option .preview')) {
 		console.debug(op);
 		const input_id = (op as HTMLElement).dataset.for;
-		if (!input_id) {
-			console.error("Missing data-for attribute for", op);
-			continue;
-		}
+		let handler: (_: Event) => void;
+		if (input_id) {
 			const input = document.getElementById(input_id);
 			if (!input || input === null) {
 				console.error("Unable to find input for", op);
 				continue;
 			}
 
-		const handler = (_: Event) => {
-			console.log("clicked");
+			handler = (_: Event) => {
 				(input as HTMLInputElement).checked = true;
-		};
+			}
+		} else {
+			const p = (op as HTMLElement).parentNode;
+			handler = (_: Event) => {
+				window.location.href = (p as HTMLAnchorElement).href;
+			}
+		}
 		op.addEventListener('click', handler);
 		(op as HTMLIFrameElement).contentDocument?.addEventListener('click', handler);
 	}