[Glitch] Add dropdown for boost privacy in boost confirmation modal

Port 07b46cb332 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/containers/dropdown_menu_container.js

@@ -5,7 +5,6 @@ import DropdownMenu from 'flavours/glitch/components/dropdown_menu';
 import { isUserTouching } from 'flavours/glitch/util/is_mobile';
 
 const mapStateToProps = state => ({
-  isModalOpen: state.get('modal').modalType === 'ACTIONS',
   dropdownPlacement: state.getIn(['dropdown_menu', 'placement']),
   openDropdownId: state.getIn(['dropdown_menu', 'openId']),
   openedViaKeyboard: state.getIn(['dropdown_menu', 'keyboard']),