Fix program not fitting on low resolution screens

Lowest vertical screen size that I could test and made sure fit is 768 pixels on a field laptop.

Closes #180 (closed)

sohstationviewer/main.py

@@ -6,6 +6,7 @@ import traceback
 from pathlib import Path
 
 from PySide2 import QtWidgets
+from PySide2.QtGui import QGuiApplication
 from PySide2.QtWidgets import QMessageBox
 
 from sohstationviewer.view.main_window import MainWindow
@@ -67,6 +68,10 @@ def main():
                                  QMessageBox.Close)
             sys.exit(1)
     config.apply_config(wnd)
+
+    screen_width, screen_height = app.primaryScreen().size().toTuple()
+    wnd.resize(screen_width, screen_height)
+
     wnd.show()
     sys.exit(app.exec_())