Fix deletion current directory and check error

[sebjulliand]

Changes

Fixes #1631
When running the Delete Object action from the IFS browser, if the target was the current directory (i.e. config.homeDirectory) the command would fail and show a success message.

This PR fixes this issue by:

• Setting config.homeDirectory to $HOME.
• Showing a notification about the working directory being changed.
• Show stderr if the rm command fails.

To reproduce the initial issue:

• Create a directory
• Set it as the Working Directory (right click action from the IFS Browser)
• Try to delete it

Checklist

• have tested my change

[sebjulliand]

@chrjorgensen : there is a new Danish translation waiting for you. Thanks in advance!

[chrjorgensen]

@sebjulliand Working as expected - of course! 😃

Now it also throws an error if the delete operation fails:

[sebjulliand]

Thanks @chrjorgensen !