Update padding in chat welcome component for improved layout (microsoft#300735)

Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>

Author: mrleemurray

src/vs/sessions/contrib/chat/browser/media/chatWelcomePart.css

@@ -12,7 +12,7 @@
 	height: 100%;
 	box-sizing: border-box;
 	overflow: hidden;
-	padding: 0 12px 10% 12px;
+	padding: 0 12px 48px 12px;
 	container-type: size;
 }