fixed nav-child-indent padding while collapse

build/scss/_layout.scss

@@ -313,6 +313,10 @@ body,
     &::before {
       margin-left: -$sidebar-width;
     }
+
+    .nav-sidebar.nav-child-indent .nav-treeview {
+      padding: 0;
+    }
   }
 
   @include media-breakpoint-down(sm) {

build/scss/_main-sidebar.scss

@@ -133,6 +133,7 @@
 
   &.nav-child-indent {
     .nav-treeview {
+      transition: padding $transition-speed $transition-fn;
       padding-left: 1rem;
     }
   }

build/scss/_mixins.scss

@@ -147,6 +147,10 @@
       &.sidebar-focused {
         width: $sidebar-width;
 
+        .nav-sidebar.nav-child-indent .nav-treeview {
+          padding-left: 1rem;
+        }
+
         .brand-link {
           width: $sidebar-width;
         }