Button in Patron Messages interface in OPAC are not translatable

The "Mark Read", "Mark Unread" and "Delete" buttons in Patron Messages interface (Open-ILS/src/templates-bootstrap/opac/myopac/messages/list.tt2, lines 67-69) are not marked for translation

The correct contents of the lines 67-69 should be:

                <button name="action" class="btn btn-action" value="mark_read" id="mark_read" type="submit"><i class="fas fa-glasses" aria-hidden="true"></i> [% l('Mark Read') %]</button>
                <button name="action" class="btn btn-opac" value="mark_unread" id="mark_unread" type="submit"><i class="fas fa-eye-slash" aria-hidden="true"></i> [% l('Mark Unread') %]</button>
                <button name="action" class="btn btn-deny" value="mark_deleted" id="mark_deleted" type="submit" onclick="return confirm('[% l("Are you sure you wish to permanently delete the selected message(s)?") %]')"><i class="fas fa-trash-alt" aria-hidden="true"></i> [% l('Delete') %]</button>