chore(term): add descriptive error on Windows for lack of VT #127

Job	Run time
test (ubuntu-20.04, 5.1)	20s
test (ubuntu-20.04, 5.2)	19s
test (ubuntu-20.04, 5.3)	19s
test (ubuntu-20.04, 5.4)	19s
test (ubuntu-20.04, luajit)	20s
test (ubuntu-20.04, luajit-openresty)	19s
test (macos-13, 5.1)	1m 0s
test (macos-13, 5.2)	59s
test (macos-13, 5.3)	42s
test (macos-13, 5.4)	49s
test (macos-13, luajit)	41s
test (macos-13, luajit-openresty)	3m 15s
test (macos-latest, 5.4)	3m 3s
test (windows-latest, 5.1, msvc)	1m 18s
test (windows-latest, 5.2, msvc)	1m 14s
test (windows-latest, 5.3, msvc)	50s
test (windows-latest, 5.4, msvc)	1m 18s
test (windows-latest, luajit, mingw)	1m 10s
	18m 15s

Provide feedback