[Lazarus] Install packages dialog on MacOS

[Michael Van Canneyt]

Hello,

The 'Install packages' dialog has 2 edit boxes to filter the list of
installed or not yet installed packages. On MacOS, I can type in the left
edit field to filter the list of installed packages. But I cannot type in
the right edit box. This is a reproducible problem for me.

This is a vanilla Lazarus 2.0.6 install on MacOS, not on Catalina, still on Mojave.

Has anyone else experienced this problem ?

Michael.