fix(app): loading session should be scrolled to the bottom

packages/app/src/pages/session/message-timeline.tsx

@@ -550,6 +550,7 @@ export function MessageTimeline(props: {
             "--sticky-accordion-top": showHeader() ? "48px" : "0px",
           }}
         >
+          <div ref={props.setContentRef} class="min-w-0 w-full">
             <Show when={showHeader()}>
               <div
                 data-session-title
@@ -665,7 +666,6 @@ export function MessageTimeline(props: {
             </Show>
 
             <div
-            ref={props.setContentRef}
               role="log"
               class="flex flex-col gap-12 items-start justify-start pb-16 transition-[margin]"
               classList={{
@@ -772,6 +772,7 @@ export function MessageTimeline(props: {
                 }}
               </For>
             </div>
+          </div>
         </ScrollView>
       </div>
     </Show>