Bootstrap creates /opt when installing toltec-bootstrap

[Eeems]

Describe the issue
The folder is created with the current opkg install state

To Reproduce
Steps to reproduce the behaviour:

1. Run bootstrap
2. systemctl stop opt.mount
3. ls /opt
4. Folder is not empty

Expected behaviour
Folder should be empty as it should only be used for mount point

Additional context
Found during #759
We probably should install toltec-bootstrap initially to /home/root/.local/share/toltec and then clean up after, instead of installing to /

[Eeems]

This appears to break toltecctl uninstall