admin: Add custom Admins for ProblemSeverity and ProblemCategory
admin: Add custom Admins for ProblemSeverity and ProblemCategory

tbabej/roots,tbabej/roots,matus-stehlik/roots,rtrembecky/roots,rtrembecky/roots,tbabej/roots,rtrembecky/roots,matus-stehlik/roots,matus-stehlik/roots