appimage: Add breeze style
configure.ac: Add breeze package. Add breeze as dependency of kxmlgui
(as for gpg4win).
patches-appimage/breeze: New.
src/appimage/Makefile.am (appimage_kdepkgs): Add breeze.
(appimage_pkg_breeze_configure): New.
src/appimage/build-appimage.sh: Add "styles" to list of plugin folders.
- GnuPG-bug-id: T7509