Add missing ConsoleLogProvider.razor.js file

examples/Tools/FluentUI.Demo.DocViewer/Components/ConsoleLogProvider.razor.js

@@ -0,0 +1,20 @@
+export function scrollToLastConsoleItem() {
+
+  const itemList = document.getElementById('console-items');
+
+  // Callback function to execute when mutations are observed
+  const observerCallback = (mutationsList, observer) => {
+    for (let mutation of mutationsList) {
+      if (mutation.type === 'childList') {
+        // Scroll to the bottom when a new item is added
+        itemList.scrollTop = itemList.scrollHeight;
+      }
+    }
+  };
+
+  // Create an instance of MutationObserver and pass in the callback function
+  const observer = new MutationObserver(observerCallback);
+
+  // Start observing the itemList for changes
+  observer.observe(itemList, { childList: true });
+}