Move shortcuts to Alt from Ctrl

static/application.js

@@ -3492,28 +3492,26 @@ $(document).ready(function(){
 
 	// Shortcuts
 	$(window).keydown(function (ev) {
-		// Only ctrl prefixed (for now)
+		if (ev.altKey)
-		if (!ev.ctrlKey) return;
-
-		let handled = true;
 			switch (ev.key) {
-			// Ctrl+Z - Back
+				// Alt+Z - Back
 				case "z":
 					button_actback.click();
 					break;
-			// Ctrl+Y - Forward
+				// Alt+Y - Forward
 				case "y":
 					button_actfwd.click();
 					break;
-			// Ctrl+E - Retry
+				// Alt+R - Retry
-			case "e":
+				case "r":
 					button_actretry.click();
 					break;
 				default:
-				handled = false;
+					return;
+		} else {
+			return;
 		}
-
+		ev.preventDefault();
-		if (handled) ev.preventDefault();
 	});
 
 	$("#anotetemplate").on("input", function() {