feat: Improved table of contents (#1223)

* feat: New table of contents

* fix: Hide TOC in edit mode

* feat: Highlight follows scroll position

* scroll tracking

* UI

* fix: Unrelated css fix with long doc titles

* Improve responsiveness

* feat: Add keyboard shortcut access to TOC

* fix: Headings should reflect content correctly when viewing old document revision

* flow

* fix: Persist TOC choice between sessions

app/scenes/Document/components/Editor.js

@@ -39,7 +39,7 @@ class DocumentEditor extends React.Component<Props> {
           ref={ref => (this.editor = ref)}
           autoFocus={!this.props.defaultValue}
           plugins={plugins}
-          grow={!readOnly}
+          grow
           {...this.props}
         />
         {!readOnly && <ClickablePadding onClick={this.focusAtEnd} grow />}