refactor: update layout

Author: mrholek

src/pug/_layout/default.pug

@@ -9,7 +9,7 @@ html(lang='en')
     block styles
   body.bg-light
     include ../_partials/sidebar.pug
-    .wrapper.d-flex.flex-column.min-vh-100(data-coreui-reliant="sidebar")
+    .wrapper.d-flex.flex-column.min-vh-100
       include ../_partials/header.pug
       .body.flex-grow-1.px-3
         .container-lg

src/scss/_layout.scss

@@ -0,0 +1,7 @@
+.wrapper {
+  width: 100%;
+  padding-left: var(--cui-sidebar-occupy, 0);
+  transform: translateZ(0);
+  will-change: auto;
+  @include transition(padding .15s);
+}

src/scss/style.scss

@@ -4,6 +4,7 @@
 // Import styles
 @import "@coreui/coreui/scss/coreui";
 
-// If you want to add something do it here
-@import "custom";
+@import "layout";
 
+// If you want to add custom CSS you can put it here.
+@import "custom";