Fix caret position after selected suggestion and media upload (#7595)

* Fix media upload reseting caret position to last inserted emoji

* Fix caret position after inserting suggestions (fixes #6089)

app/javascript/mastodon/features/compose/containers/compose_form_container.js

@@ -19,6 +19,7 @@ const mapStateToProps = state => ({
   spoiler_text: state.getIn(['compose', 'spoiler_text']),
   privacy: state.getIn(['compose', 'privacy']),
   focusDate: state.getIn(['compose', 'focusDate']),
+  caretPosition: state.getIn(['compose', 'caretPosition']),
   preselectDate: state.getIn(['compose', 'preselectDate']),
   is_submitting: state.getIn(['compose', 'is_submitting']),
   is_uploading: state.getIn(['compose', 'is_uploading']),