Remove encoding line and add spaces between classes and functions, tests

tests/test_gui/test_gui_theme.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 """
 novelWriter – GUI Theme and Icons Classes Tester
 ================================================
@@ -30,6 +29,7 @@ keyDelay = 2
 typeDelay = 1
 stepDelay = 20
 
+
 @pytest.mark.gui
 def testGuiTheme_Main(qtbot, monkeypatch, nwMinimal, tmpDir):
     """Test the theme and icon classes.