sysutils/zellij: Update to upstream release 0.28.1
Details:
- Fixes, improvements, new features, change of the default theme, see https://github.com/zellij-org/zellij/releases/tag/v0.28.1
MFH: 2022Q2
(cherry picked from commit fe38aa5634417eb265d92f10f1deed8b017b0547)