fix: trailing "assistant" message issue

src/routes/(app)/+page.svelte

@@ -365,8 +365,6 @@
 					];
 				}
 
-				await tick();
-
 				window.scrollTo({ top: document.body.scrollHeight });
 
 				const res = await fetch(

src/routes/(app)/c/[id]/+page.svelte

@@ -379,8 +379,6 @@
 					];
 				}
 
-				await tick();
-
 				window.scrollTo({ top: document.body.scrollHeight });
 
 				const res = await fetch(