Add main application logic, UI components, and logging setup

Widget/main_window.py

@@ -0,0 +1,22 @@
+import random
+from PySide6 import QtCore, QtWidgets
+
+
+class MyWidget(QtWidgets.QWidget):
+    def __init__(self):
+        super().__init__()
+
+        self.hello = ["Hallo Welt", "Hei maailma", "Hola Mundo", "Привет мир"]
+
+        self.button = QtWidgets.QPushButton("Click me!")
+        self.text = QtWidgets.QLabel("Hello World", alignment=QtCore.Qt.AlignCenter)
+
+        self.layout = QtWidgets.QVBoxLayout(self)
+        self.layout.addWidget(self.text)
+        self.layout.addWidget(self.button)
+
+        self.button.clicked.connect(self.magic)
+
+    @QtCore.Slot()
+    def magic(self):
+        self.text.setText(random.choice(self.hello))