Prevent dropdownmenu from dismissing if toggle=false

Author: tcbegley

src/components/dropdownmenu/DropdownMenu.js

@@ -153,7 +153,7 @@ DropdownMenu.propTypes = {
 
   /**
    * Set the color of the DropdownMenu toggle. Available options are: 'primary',
-   * 'secondary', 'success', 'warning', 'danger', 'info', 'link' or any valid CSS 
+   * 'secondary', 'success', 'warning', 'danger', 'info', 'link' or any valid CSS
    * color of your choice (e.g. a hex code, a decimal code or a CSS color name)
    * Default: 'secondary'
    */

src/components/dropdownmenu/DropdownMenuItem.js

@@ -48,6 +48,7 @@ const DropdownMenuItem = props => {
       href={disabled ? null : href}
       disabled={disabled}
       target={useLink && target}
+      toggle={toggle}
       {...omit(['setProps'], otherProps)}
       data-dash-is-loading={
         (loading_state && loading_state.is_loading) || undefined