CAY-1822  Make DataMap editor fields wider

patch by ArtyomN

(cherry picked from commit 3edb57dc20bca340f2f22f7e7ba0a8126cedbb6d)

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1486187 13f79535-47bb-0310-9956-ffa450edef68
CAY-1822  Make DataMap editor fields wider

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1486188 13f79535-47bb-0310-9956-ffa450edef68