jackson.version has been updated from 2.12.5 to
2.14.0-rc2
2.12.5 has a security vulnerability

SuppressFBWarnings renamed too SuppressFindBugsWarnings
removes also a last standing checkstyle warning

used gitignore.io with
java,macos,windows,linux,maven to produce a better file
integrated with the existing one.

It  seems tha testfx framework has an issue running drag drop test on windows
using the "glass" UI robot
but the altwernative "awt" robot is working
to fix that we add the -Dtestfx.robot=awt in maven-surefire-plugin argument line

the  testAddToDoItem was using asserTrue to check isOverdue between item and the copy
the best practice is to use assertEquals

* ensure todoPersistence object is not null on all paths
* output ignored exceptions to std err