reorganize editor layout

src/client/js/components/PageEditor/PagePathNavForEditor.jsx

@@ -20,7 +20,7 @@ const PagePathNavForEditor = (props) => {
   const pagePathHierarchicalLink = <PagePathHierarchicalLink linkedPagePath={linkedPagePath} />;
 
   return (
-    <div className="grw-page-path-nav-for-edit mt-1">
+    <div className="grw-page-path-nav-for-edit">
       <span className="d-flex align-items-center flex-wrap">
         <h3 className="mb-0 grw-page-path-link">{pagePathHierarchicalLink}</h3>
         <RevisionPathControls

src/client/styles/scss/_mixins.scss

@@ -16,7 +16,7 @@
 }
 
 @mixin expand-editor($editor-header-plus-footer, $navbar-height-adjustment: 0px) {
-  $navbar-height: $grw-navbar-height + $grw-navbar-border-width + $navbar-height-adjustment;
+  $navbar-height: $grw-navbar-border-width + $navbar-height-adjustment;
   $header-plus-footer: $navbar-height + $editor-header-plus-footer + 2px; // add .main padding-top
 
   $editor-margin: $header-plus-footer //

src/client/styles/scss/_on-edit.scss

@@ -19,12 +19,13 @@ body.on-edit {
   .page-wrapper {
     position: relative;
     top: $grw-navbar-border-width;
+    height: calc(100vh - #{$grw-navbar-border-width});
   }
 
   // calculate margin
-  $editor-header-plus-footer: 42px // .nav-tabs height
-    + 1px //                          .page-editor-footer border-top
-    + 40px !default; //               .page-editor-footer min-height
+  $editor-header-plus-footer: 42px //               .nav-tabs height
+    + 1px //                                        .page-editor-footer border-top
+    + $grw-editor-navbar-bottom-height !default; // .EditorNavbarBottom min-height
 
   @include expand-editor($editor-header-plus-footer);
 
@@ -105,6 +106,8 @@ body.on-edit {
   }
 
   .grw-page-path-nav-for-edit {
+    position: absolute;
+
     .grw-page-path-link {
       font-size: 20px;
       line-height: 1em;