Adjust the height and position of reddit thumbnails

internal/assets/static/main.css

@@ -576,11 +576,11 @@ body {
 .forum-post-list-thumbnail {
     flex-shrink: 0;
     width: 6rem;
-    height: 4rem;
+    height: 4.1rem;
     border-radius: var(--border-radius);
     object-fit: cover;
     border: 1px solid var(--color-separator);
-    margin-top: 0.2rem;
+    margin-top: 0.1rem;
 }
 
 .bookmarks-group {