Make DialogManager accept kwargs

When opening a dialogue accepting multiple optional arguments, relying
on position is error-prone and requires passing Nones to fill unused
parameter slots.

qt/aqt/__init__.py

@@ -88,7 +88,7 @@ class DialogManager:
         "sync_log": [mediasync.MediaSyncDialog, None],
     }
 
-    def open(self, name: str, *args: Any) -> Any:
+    def open(self, name: str, *args: Any, **kwargs: Any) -> Any:
         (creator, instance) = self._dialogs[name]
         if instance:
             if instance.windowState() & Qt.WindowMinimized:
@@ -96,12 +96,11 @@ class DialogManager:
             instance.activateWindow()
             instance.raise_()
             if hasattr(instance, "reopen"):
-                instance.reopen(*args)
+                instance.reopen(*args, **kwargs)
-            return instance
         else:
-            instance = creator(*args)
+            instance = creator(*args, **kwargs)
             self._dialogs[name][1] = instance
-            return instance
+        return instance
 
     def markClosed(self, name: str):
         self._dialogs[name] = [self._dialogs[name][0], None]

qt/aqt/browser.py

@@ -1160,7 +1160,8 @@ where id in %s"""
             ChangeModel(self, nids)
 
     def filterToDeck(self):
-        aqt.dialogs.open("DynDeckConfDialog", self.mw, self.form.searchEdit.lineEdit().text())
+        search = self.form.searchEdit.lineEdit().text()
+        aqt.dialogs.open("DynDeckConfDialog", self.mw, search=search)
 
     # Preview
     ######################################################################

qt/aqt/main.py

@@ -1056,7 +1056,7 @@ title="%s" %s>%s</button>""" % (
         if deck["dyn"]:
             import aqt
 
-            aqt.dialogs.open("DynDeckConfDialog", self, None, deck)
+            aqt.dialogs.open("DynDeckConfDialog", self, deck=deck)
         else:
             import aqt.deckconf