restore WB snapshot image download

bigbluebutton-html5/imports/ui/components/presentation/presentation-menu/component.jsx

@@ -185,33 +185,41 @@ const PresentationMenu = (props) => {
               },
             });
 
-            toPng(getScreenshotRef(), {
+            try {
-              width: window.screen.width,
+              const wbRef = document.getElementById('Navbar')?.nextSibling?.childNodes[1]?.querySelector('[tabindex = "0"]');
-              height: window.screen.height,
+              toPng(wbRef, {
-            }).then((data) => {
+                width: window.screen.width,
-              const anchor = document.createElement('a');
+                height: window.screen.height,
-              anchor.href = data;
+              }).then((data) => {
-              anchor.setAttribute(
+                const anchor = document.createElement('a');
-                'download',
+                anchor.href = data;
-                `${elementName}_${meetingName}_${new Date().toISOString()}.png`,
+                anchor.setAttribute(
-              );
+                  'download',
-              anchor.click();
+                  `${elementName}_${meetingName}_${new Date().toISOString()}.png`,
-
+                );
-              setState({
+                anchor.click();
-                loading: false,
+  
-                hasError: false,
+                setState({
+                  loading: false,
+                  hasError: false,
+                });
+              }).catch((error) => {
+                logger.warn({
+                  logCode: 'presentation_snapshot_error',
+                  extraInfo: error,
+                });
+  
+                setState({
+                  loading: false,
+                  hasError: true,
+                });
               });
-            }).catch((error) => {
+            } catch (err) {
               logger.warn({
                 logCode: 'presentation_snapshot_error',
-                extraInfo: error,
+                extraInfo: err,
               });
-
+            }
-              setState({
-                loading: false,
-                hasError: true,
-              });
-            });
           },
         },
       );