UI: Hide image_data widget for cleaner appearance

Added JavaScript to hide the image_data widget:
- Set type to 'converted-widget'
- Set computeSize to [0, -4] to hide it

The widget still functions (auto-filled by file picker)
but is no longer visible in the UI for cleaner look.

web/random_image_picker.js

@@ -11,6 +11,13 @@ app.registerExtension({
                 const result = onNodeCreated ? onNodeCreated.apply(this, arguments) : undefined;
                 const node = this;
                 
+                // Hide image_data widget (it's auto-filled by file picker)
+                const imageDataWidget = node.widgets.find(w => w.name === "image_data");
+                if (imageDataWidget) {
+                    imageDataWidget.type = "converted-widget";
+                    imageDataWidget.computeSize = () => [0, -4]; // Hide it
+                }
+                
                 // Add file picker button
                 node.addWidget("button", "📁 Choose File", null, () => {
                     const input = document.createElement("input");