This adds Reset() method to KIFACE to reload global libs stored in
global static vars.
Also refactors some lib reload code in various frames to have
common MAIL_RELOAD_LIB handler.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/12500
As of wxWidgets 3.2, the wxWidgets event handler runs code after the
the client event handler that depends on the menu still existing.
Because there are potentially many paths to call ReCreateMenuBar from
within a menu event handler, let's just wrap this action in a CallAfter
to make sure it happens after the wx handler call completes.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/13149