
tailscale-ipn.exe (the GUI) shouldn't use C:\ProgramData.
Also, migrate the earlier misnamed wg32/wg64 conf files if they're present.
(That was stopped in 2db877caa3
, but the
files exist from fresh 1.14 installs)
Updates #2856
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>