Fix an issue with changing the data folder; Include QDarkStyle when building Windows installer

openlp/core/ui/mainwindow.py

@@ -1332,7 +1332,7 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow, LogMixin, RegistryPropert
                 self.show_status_message(
                     translate('OpenLP.MainWindow', 'Copying OpenLP data to new data directory location - {path} '
                               '- Please wait for copy to finish').format(path=self.new_data_path))
-                dir_util.copy_tree(old_data_path, self.new_data_path)
+                dir_util.copy_tree(str(old_data_path), str(self.new_data_path))
                 self.log_info('Copy successful')
             except (OSError, DistutilsFileError) as why:
                 self.application.set_normal_cursor()

scripts/appveyor.yml

@@ -16,7 +16,7 @@ environment:
 
 install:
   # Install dependencies from pypi
-  - "%PYTHON%\\python.exe -m pip install sqlalchemy alembic appdirs chardet beautifulsoup4 lxml Mako mysql-connector-python pytest mock pyodbc psycopg2 pypiwin32 websockets asyncio waitress six webob requests QtAwesome PyQt5 PyQtWebEngine pymediainfo PyMuPDF"
+  - "%PYTHON%\\python.exe -m pip install sqlalchemy alembic appdirs chardet beautifulsoup4 lxml Mako mysql-connector-python pytest mock pyodbc psycopg2 pypiwin32 websockets asyncio waitress six webob requests QtAwesome PyQt5 PyQtWebEngine pymediainfo PyMuPDF QDarkStyle"
 
 build: off
 
@@ -72,5 +72,3 @@ artifacts:
     name: Portable-installer
   - path: openlp-branch\dist\*.msi
     name: Installer
-  - path: packaging\windows\OpenLP.wxs
-    name: Generated-XML