Update browser use video and add to tutorial videos list

Author: Sannidhya

docs/features/browser-use.mdx

@@ -18,7 +18,7 @@ Roo Code provides sophisticated browser automation capabilities that let you int
 
 <div style={{ position: 'relative', paddingBottom: '56.25%', height: 0, overflow: 'hidden' }}>
   <iframe
-    src="https://www.youtube.com/embed/SJae206swxA"
+    src="https://www.youtube.com/embed/cAjzTs0194c"
     style={{
       position: 'absolute',
       top: 0,

docs/tutorial-videos.json

@@ -43,6 +43,10 @@
     {
       "id": "IOpmeUGLpg0",
       "title": "Slash Commands"
+    },
+    {
+      "id": "cAjzTs0194c",
+      "title": "Browser Use"
     }
   ]
 }