fix(types): add missing markdown rendering settings to Settings type (#25198)

src/lib/stores/index.ts

@@ -230,6 +230,8 @@ type Settings = {
 	chatDirection?: 'LTR' | 'RTL' | 'auto';
 	ctrlEnterToSend?: boolean;
 	renderMarkdownInPreviews?: boolean;
+	renderMarkdownInUserMessages?: boolean;
+	renderMarkdownInAssistantMessages?: boolean;
 	recentEmojis?: string[];
 	pinnedMenuItems?: string[];