handlers.js: fix TypeError on document.activeElement.type

assets/js/handlers.js

@@ -150,13 +150,13 @@
 
         // Ignore shortcuts if any text input is focused
         let focused_tag = document.activeElement.tagName.toLowerCase();
-        let focused_type = document.activeElement.type.toLowerCase();
-        let allowed = /^(button|checkbox|file|radio|submit)$/;
+        const allowed = /^(button|checkbox|file|radio|submit)$/;
 
-        if (focused_tag === "textarea" ||
-           (focused_tag === "input" && !focused_type.match(allowed))
-        )
-            return;
+        if (focused_tag === "textarea") return;
+        if (focused_tag === "input") {
+            let focused_type = document.activeElement.type.toLowerCase();
+            if (!focused_type.match(allowed)) return;
+        }
 
         // Focus search bar on '/'
         if (event.key == "/") {