Fix image thumbnail cover size

stylesheets/_modules.scss

@@ -3340,10 +3340,6 @@ button.module-image__border-overlay:focus {
   &.module-image:hover::before {
     opacity: 1;
   }
-
-  &.module-image .module-image__image {
-    aspect-ratio: 1 / 1;
-  }
 }
 
 // Module: Staged Generic Attachment

ts/components/ImageOrBlurhash.tsx

@@ -59,6 +59,9 @@ export function ImageOrBlurhash({
             ? `${intrinsicWidth} / ${intrinsicHeight}`
             : undefined,
 
+        width: '100%',
+        height: '100%',
+
         // Preserve aspect ratio
         backgroundSize: 'cover',
         backgroundPosition: 'center',