message: ledger: improve copy of some settings
diff: </li>
  <li>
  <input type="checkbox" name="css.small_icns_compose" id="small_icns_compose">
  - <label for="small_icns_compose" data-lang="css_small_icns_compose">Icons are smaller in the Compose panel</label>
  + <label for="small_icns_compose" data-lang="css_small_icns_compose">Make buttons smaller in the Compose panel</label>
  </li>
  <li>
  <input type="checkbox" name="css.gray_icns_notifs" id="gray_icns_notifs">
  