Needs detection whether we have them available at some point, especially
since Ubuntu 24.04 blocks them with Apparmor. But for now, don't unshare
anything.
submodules: exile.h: Sync
The pointer becomes invalid as readablePathLocation falls out of scope,
and exile.h quits with an error.
This may indicate exile API sucks, so something to think about there.
Detect mime types, and for text/*, run the default text processor.
The added benefit is that we can now add plaintext files without extensions,
or many other text files (e. g. source code).
