allows for keydown to run even if not composed

this should not happen regardless, but is safer

javascript/image_browser.js

@@ -220,10 +220,12 @@ gradioApp().addEventListener("keydown", function(event) {
     }
 
     // If the user is typing in an input field, dont listen for keypresses
+    let target;
     if (!event.composed) { // We shouldn't get here as the Shadow DOM is always active, but just in case
-        return;
+        target = event.target;
+    } else {
+        target = event.composedPath()[0];
     }
-    let target = event.composedPath()[0];
     if (!target || target.nodeName === "INPUT" || target.nodeName === "TEXTAREA") {
       return;
     }