Mark BROKEN on FreeBSD 13 and 14

ld: error: duplicate symbol: TerminalWindowNoMoreActiveWindowsNotification

defined at main.m

./obj/Terminal.obj/main.m.o:(TerminalWindowNoMoreActiveWindowsNotification)

defined at Services.m

./obj/Terminal.obj/Services.m.o:(.bss+0x460)

Reported by: pkg-fallout
MFH: 2021Q1