fixed sidebar overflow while collapse

build/scss/_sidebar-mini.scss

@@ -45,6 +45,8 @@
 
     // Modify the sidebar to shrink instead of disappearing
     .main-sidebar {
+      overflow-x: hidden;
+
       &,
       &:before {
         // Don't go away! Just shrink

dist/css/adminlte.css

@@ -11464,6 +11464,9 @@ body,
     opacity: 0;
     margin-left: -10px;
   }
+  .sidebar-mini.sidebar-collapse .main-sidebar {
+    overflow-x: hidden;
+  }
   .sidebar-mini.sidebar-collapse .main-sidebar, .sidebar-mini.sidebar-collapse .main-sidebar:before {
     margin-left: 0;
     width: 4.6rem;
@@ -11532,6 +11535,9 @@ body,
     opacity: 0;
     margin-left: -10px;
   }
+  .sidebar-mini-md.sidebar-collapse .main-sidebar {
+    overflow-x: hidden;
+  }
   .sidebar-mini-md.sidebar-collapse .main-sidebar, .sidebar-mini-md.sidebar-collapse .main-sidebar:before {
     margin-left: 0;
     width: 4.6rem;