message: Allow slash commands description to wrap on a new line
diff: .mx_Autocomplete_Completion_block {
  min-height: 34px;
  display: flex;
  + flex-wrap: wrap;
  padding: 0 12px;
  user-select: none;
  cursor: pointer;
  .mx_Autocomplete_Completion_description {
  color: gray;
  + min-width: 150px;
  }
  .mx_Autocomplete_Completion_container_pill {
  