FIXUP: try loading pyside2 first and then pyside6

The type checked mypy was producing countless error messages on linux
(where pyside2 is the default). Loading PySide2 before PySide6 seems to
resolve some of the issues.

The mypy --ignore-unused-imports had to be removed since it would fail
on systems with PySide6 and on systems with PySide2 they would complain
that the import of QtCore, for example, as being redefined.

Makefile

@@ -18,8 +18,7 @@ MYPY_ARGS := --ignore-missing-imports \
 			 --disallow-incomplete-defs \
 			 --disallow-untyped-defs \
 			 --show-error-codes \
-			 --warn-unreachable \
-			 --warn-unused-ignores
+			 --warn-unreachable
 
 mypy-host:
 	mypy $(MYPY_ARGS) dangerzone

dangerzone/gui/__init__.py

@@ -11,9 +11,9 @@
 import colorama
 
 try:
-    from PySide6 import QtCore, QtGui, QtWidgets
-except ImportError:
     from PySide2 import QtCore, QtGui, QtWidgets
+except ImportError:
+    from PySide6 import QtCore, QtGui, QtWidgets  # type: ignore [no-redef]
 
 from .. import args, errors
 from ..document import Document

dangerzone/gui/logic.py

@@ -10,9 +10,9 @@
 from colorama import Fore
 
 try:
-    from PySide6 import QtCore, QtGui, QtWidgets
-except ImportError:
     from PySide2 import QtCore, QtGui, QtWidgets
+except ImportError:
+    from PySide6 import QtCore, QtGui, QtWidgets  # type: ignore [no-redef]
 
 if platform.system() == "Linux":
     from xdg.DesktopEntry import DesktopEntry

dangerzone/gui/main_window.py

@@ -11,9 +11,9 @@
 from colorama import Fore, Style
 
 try:
-    from PySide6 import QtCore, QtGui, QtWidgets
-except ImportError:
     from PySide2 import QtCore, QtGui, QtWidgets
+except ImportError:
+    from PySide6 import QtCore, QtGui, QtWidgets  # type: ignore [no-redef]
 
 from .. import container, errors
 from ..container import convert