If photo hash is advertized in presence and the photo hash is not yet known,
vcard is being requested. After vcard has been received at least two failures
can occur:
- there is no photo at all;
- photo has different hash than advertized.
Let log them for quick identification

Addresses: #9171

Fixes #9167

Fixes #9159

- Use icon names instead of path
- Move PopupNotificationWindow into notify.py
- Make popup class method instead of module method
- Dont use sessions to get control on notification action Fixes #9140
- Add has_focus() method to ChatControlBase

Fixes #9163

This Messenger shut down and is not available anymore

This Messenger shut down and is not available anymore

This Messenger shut down and is not available anymore

Python 3.6 does not use the MacOS cert store anymore

Fixes #5294

Fixes #9146

Fixes #9149

Fixes #9138

- Port pybonjour code from gajim_0.16 branch
- Fix some other small things that broke zeroconf

cleaning /share/locale/ from one component can affect later components,
i.e. locales are also removed there

This is not for the Gajim version, its the version of the spec this
file conforms to.
This key is not required by the spec

Fixes #9110

Presence without vcard hash is not invalid

On Linux ctypes has not attr windll, move it into the __init__()
so it does not get evaluatet on module import

- Get rid of sleepy.py, handle everything in idle.py
- Introduce one Monitor class that handles everything

* Removes use of most global variables
* Adds some some logging
* Removes unused close() method for Xss