For #26587 - Fix broken previews using Fenix Image composable

app/src/main/java/org/mozilla/fenix/compose/Image.kt

@@ -46,6 +46,9 @@ fun Image(
     alignment: Alignment = Alignment.Center,
     contentScale: ContentScale = ContentScale.Fit,
 ) {
+    if (inComposePreview) {
+        DefaultImagePlaceholder(modifier = modifier)
+    } else {
         ImageLoader(
             url = url,
             client = components.core.client,
@@ -66,6 +69,7 @@ fun Image(
 
             WithDefaultFallback(modifier, contentDescription)
         }
+    }
 }
 
 @Composable