aerc is a mail client. It needs some ini files to work.
This is an initial attempt at generating them.
Change-Id: I087955f19d2c4527275500a1e13eeb071c98a7b9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5526
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
