[format.python] initial formatting of the python code

This patch was generated by black [1]::

    make format.python

[1] https://github.com/psf/black

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/shared/shared_abstract.py

@@ -3,7 +3,6 @@ from abc import ABC, abstractmethod
 
 
 class SharedDict(ABC):
-
     @abstractmethod
     def get_int(self, key):
         pass