enh: image generation toggle

src/lib/components/chat/MessageInput.svelte

@@ -62,12 +62,15 @@
 	export let files = [];
 
 	export let selectedToolIds = [];
+
+	export let imageGenerationEnabled = false;
 	export let webSearchEnabled = false;
 
 	$: onChange({
 		prompt,
 		files,
 		selectedToolIds,
+		imageGenerationEnabled,
 		webSearchEnabled
 	});
 
@@ -642,6 +645,7 @@
 								<div class=" flex">
 									<div class="ml-1 self-end mb-1.5 flex space-x-1">
 										<InputMenu
+											bind:imageGenerationEnabled
 											bind:webSearchEnabled
 											bind:selectedToolIds
 											{screenCaptureHandler}