[feature] Always show content warning: use existing glitch feature (#1)

The modifications you made are somewhat janky; for instance, editing a toot with an existing content warning makes the UI look very weird and doesn't quite work.

Glitch already has a feature for this, so simply turn it on by default. This should do the same thing.

Reviewed-on: https://codeberg.org/superseriousbusiness/masto-fe-standalone/pulls/1
Co-authored-by: julia <midnight@trainwit.ch>
Co-committed-by: julia <midnight@trainwit.ch>

app/javascript/flavours/glitch/features/compose/containers/compose_form_container.js

@@ -5,6 +5,7 @@ import { connect } from 'react-redux';
 import {
   changeCompose,
   changeComposeSpoilerText,
+  changeComposeSpoilerness,
   changeComposeVisibility,
   clearComposeSuggestions,
   fetchComposeSuggestions,
@@ -116,6 +117,10 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     dispatch(insertEmojiCompose(position, emoji));
   },
 
+  onChangeSpoilerness() {
+    dispatch(changeComposeSpoilerness());
+  },
+
   onChangeVisibility(value) {
     dispatch(changeComposeVisibility(value));
   },