fix: move max-width to another class

Author: isekovanic

examples/vite/src/index.scss

@@ -29,10 +29,7 @@ body,
     width: 0;
     flex-shrink: 0;
     box-shadow: 0 0 8px rgba(0, 0, 0, 0.15);
-
-    .str-chat__channel-preview-messenger {
-      max-width: 1000px;
-    }
+    max-width: 1000px;
 
     &--open {
       width: 30%;