fix br --notepad for WSL

[pfuntner]

Now that I've started using WSL, br --notepad is broken: the WSL file space isn't immediately available to Windoze. However, I could make use of the wsl command:

wsl cat /FULL/PATH/TO/WSL/FILE > WINDOZE_TMP_SPACE

And from there, launch Notepad.

I likely need to run that above command from Windoze:

/mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe -Command 'Get-DnsClientGlobalSetting | Select-Object -ExpandProperty SuffixSearchList'
cisco.com
[jpfuntne@jcp-20230922 07:26:52 ~]$

I might also need a special file space for files and some sort of automated daily cleanup either with cron or built into br.