center avatar on group panel

stylesheets/_session.scss

@@ -1514,11 +1514,6 @@ input {
   }
 }
 
-.invite-friends-container {
-  height: $session-icon-size-lg;
-  width: $session-icon-size-lg;
-}
-
 .module-message-detail {
   .module-message {
     pointer-events: none;

stylesheets/_session_group_panel.scss

@@ -18,6 +18,8 @@
 
   &-header {
     margin-top: $session-margin-lg;
+    margin-inline-start: $session-margin-sm;
+    margin-inline-end: $session-margin-sm;
     width: -webkit-fill-available;
     display: flex;
     flex-direction: row;
@@ -26,11 +28,6 @@
     .module-avatar {
       margin: auto;
     }
-
-    .session-icon-button,
-    .invite-friends-container {
-      margin: 0 $session-margin-md;
-    }
   }
 
   h2 {