fix unused channel style on search page

ui/component/claimPreview/view.jsx

@@ -191,12 +191,13 @@ const ClaimPreview = forwardRef<any, {}>((props: Props, ref: any) => {
         'claim-preview--pending': pending,
       })}
     >
-      {isChannel ? (
+      {isChannel && claim ? (
         <UriIndicator uri={uri} link>
           <ChannelThumbnail uri={uri} obscure={channelIsBlocked} />
         </UriIndicator>
-      ) : (<CardMedia thumbnail={thumbnail} />)
-      }
+      ) : (
+        <CardMedia thumbnail={thumbnail} />
+      )}
       <div className="claim-preview-metadata">
         <div className="claim-preview-info">
           <div className="claim-preview-title">

ui/scss/component/_claim-list.scss

@@ -72,7 +72,7 @@
 .claim-preview--large {
   border: none;
   padding: 0;
-  margin: var(--spacing-medium);
+  padding: var(--spacing-medium);
 
   &:hover {
     background-color: transparent;