Fix hashtag column options styling (#14247)

* Enable nonces for stylesheets

* Pass nonce to react-select

app/views/layouts/application.html.haml

@@ -25,6 +25,7 @@
     = javascript_pack_tag 'common', integrity: true, crossorigin: 'anonymous'
     = javascript_pack_tag "locale_#{I18n.locale}", integrity: true, crossorigin: 'anonymous'
     = csrf_meta_tags
+    %meta{ name: 'style-nonce', content: request.content_security_policy_nonce }
 
     = stylesheet_link_tag '/inert.css', skip_pipeline: true, media: 'all', id: 'inert-style'