fix(chat): repair search result sender info

src/components/Avatar.scss

@@ -50,6 +50,21 @@
         border-radius: inherit;
     }
 
+    .avatar-loading {
+        width: 100%;
+        height: 100%;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        color: var(--text-tertiary, #999);
+        background-color: var(--bg-tertiary, #e0e0e0);
+        border-radius: inherit;
+
+        .avatar-loading-icon {
+            animation: avatar-spin 0.9s linear infinite;
+        }
+    }
+
     /* Loading Skeleton */
     .avatar-skeleton {
         position: absolute;
@@ -76,4 +91,14 @@
             background-position: -200% 0;
         }
     }
-}
+
+    @keyframes avatar-spin {
+        0% {
+            transform: rotate(0deg);
+        }
+
+        100% {
+            transform: rotate(360deg);
+        }
+    }
+}