Description:
I have installed kdeconnect and it comes with the Nautilus extension, however I've been noticing that Nautilus does not give me any options to use kdeconnect features from the file manager.

Today when I started Nautilus from the terminal, I saw that the error was due to a wrong attribute being used :

```
Traceback (most recent call last):
File "/usr/share/nautilus-python/extensions/kdeconnect-share.py", line 37, in <module>
i18n = gettext.translation('kdeconnect-nautilus-extension')
File "/usr/lib/python3.8/gettext.py", line 588, in translation
raise FileNotFoundError(ENOENT,
FileNotFoundError: [Errno 2] No translation file found for domain: 'kdeconnect-nautilus-extension'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/nautilus-python/extensions/kdeconnect-share.py", line 40, in <module>
print('kdeconnect-nautilus: {0}'.format(e.strerr))
AttributeError: 'FileNotFoundError' object has no attribute 'strerr'
```

After opening the extension, I noticed that indeed the error was that there is a mistake in printing the `strerror` property of `OSError`. They used `strerr` instead of `strerror`.

I verified this was the problem by updating the code to the correct property and now, the extension is working as exptected.


Additional info:
* package version(s)
kdeconnect 1.4-2
* config and/or log files etc.
* link to upstream bug report, if any
https://phabricator.kde.org/T12995
Steps to reproduce:
Install package version and open nautilus from terminal