Chore: Remove unused variables

src/UI/Image/AttributedImage.svelte

@@ -26,7 +26,7 @@
     on:click={() => {
       previewedImage?.setData(image)
     }}
-    on:error={(event) => {
+    on:error={() => {
       if (fallbackImage) {
         imgEl.src = fallbackImage
       }

src/UI/Image/ImageCarousel.ts

@@ -21,8 +21,7 @@ export class ImageCarousel extends Toggle {
             changes?: Changes
             layout: LayoutConfig
             previewedImage?: UIEventSource<ProvidedImage>
-        },
-        feature: Feature
+        }
     ) {
         const uiElements = images.map(
             (imageURLS: { key: string; url: string; provider: ImageProvider; id: string }[]) => {