Update Avatar.css

Author: ProLoser

src/Avatar.css

@@ -1,7 +1,7 @@
 .avatar {
-    width: 5em;
+    width: 4em;
     border-radius: 50%;
     aspect-ratio: 1;
     /* border: 2px solid #AAA; */
     object-fit: cover;
-}
+}