fix: restore key event handlers when DOM element is fullscreen (#1157)

* GH-1156: Restore key event handlers when a DOM element is fullscreen

Make sure to call dispatchKeyEvent from base class in WrapperView, if
the event hasn't been handled by the engine.

* Remove unwanted whitespace in condition

Co-authored-by: エリス <erisu@users.noreply.github.com>
Co-authored-by: Michael Goffioul <michael.goffioul@lincor.com>

framework/src/org/apache/cordova/CordovaWebViewImpl.java

@@ -265,7 +265,12 @@ public WrapperView(Context context, CordovaWebViewEngine engine) {
 
         @Override
         public boolean dispatchKeyEvent(KeyEvent event) {
-            return engine.getView().dispatchKeyEvent(event);
+            boolean ret = engine.getView().dispatchKeyEvent(event);
+            if (!ret) {
+                // If the engine didn't handle the event, handle it normally.
+                ret = super.dispatchKeyEvent(event);
+            }
+            return ret;
         }
     }