Improve chat navigation, model selection, and streaming

components/ai-elements/artifact.tsx

@@ -8,7 +8,7 @@ import {
   TooltipTrigger,
 } from "@/components/ui/tooltip";
 import { cn } from "@/lib/utils";
-import { type LucideIcon, XIcon } from "lucide-react";
+import { type RemixiconComponentType, RiCloseLine } from "@remixicon/react";
 import type { ComponentProps, HTMLAttributes } from "react";
 
 export type ArtifactProps = HTMLAttributes<HTMLDivElement>;
@@ -57,7 +57,7 @@ export const ArtifactClose = ({
     variant={variant}
     {...props}
   >
-    {children ?? <XIcon className="size-4" />}
+    {children ?? <RiCloseLine className="size-4" />}
     <span className="sr-only">Close</span>
   </Button>
 );
@@ -92,7 +92,7 @@ export const ArtifactActions = ({
 export type ArtifactActionProps = ComponentProps<typeof Button> & {
   tooltip?: string;
   label?: string;
-  icon?: LucideIcon;
+  icon?: RemixiconComponentType;
 };
 
 export const ArtifactAction = ({