fix: allow image pasting when AI is busy

- Remove sendingDisabled from shouldDisableImages logic in ChatView.tsx
- Images can now be pasted and queued when AI is processing, consistent with text message queueing behavior
- Fixes issue where image paste was blocked during AI processing while text could still be typed and queued

Fixes #6395

Author: roomote

webview-ui/src/components/chat/ChatView.tsx

@@ -811,8 +811,7 @@ const ChatViewComponent: React.ForwardRefRenderFunction<ChatViewRef, ChatViewPro
 
 	const selectImages = useCallback(() => vscode.postMessage({ type: "selectImages" }), [])
 
-	const shouldDisableImages =
-		!model?.supportsImages || sendingDisabled || selectedImages.length >= MAX_IMAGES_PER_MESSAGE
+	const shouldDisableImages = !model?.supportsImages || selectedImages.length >= MAX_IMAGES_PER_MESSAGE
 
 	const handleMessage = useCallback(
 		(e: MessageEvent) => {