Mouse input's priority needs to go after keyboard when pressing Mod4 key

[Daniel LaSalle]

When pressing the Mod4 key to access the MATE menu, 11 out of 10 chances the user will want to user the keyboard for a search criteria.

If the mouse cursor happens to be sitting on top of any(*) surface of the menu then it becomes impossible to type in anything to search.

(*) this is not technically true because if the mouse cursor is either sitting above the text box OR the "Favourites" line then the keyboard will work.

This annoyance has been around forever.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: mate-menus 1.26.0-3
ProcVersionSignature: Ubuntu 6.5.0-9.9-generic 6.5.3
Uname: Linux 6.5.0-9-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Sun Oct 15 14:52:37 2023
InstallationDate: Installed on 2023-04-14 (184 days ago)
InstallationMedia: Ubuntu-MATE 22.10 "Kinetic Kudu" - Release amd64 (20221018)
PackageArchitecture: all
SourcePackage: mate-menus
UpgradeStatus: Upgraded to mantic on 2023-10-13 (2 days ago)
modified.conffile..etc.cron.daily.apport: [deleted]