Add About window and basic commands to MenuBar (#113)

* Initial commit for about_window.py

* Add some basic actions to the MenuBar

* Fix keyboard shortcuts

* Fix path to icon for Windows

src/ui/about_window.py

@@ -0,0 +1,74 @@
+import os
+import sys
+
+from PyQt6.QtCore import Qt
+from PyQt6.QtGui import QPixmap
+from PyQt6.QtWidgets import QDialog, QVBoxLayout, QLabel, QDialogButtonBox, QHBoxLayout
+
+from version import *
+
+
+class AboutDialog(QDialog):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle(f"About {APP_NAME}")
+
+        # Create the layout
+        layout = QVBoxLayout()
+
+        # App Icon
+        icon_name = 'Server.png'  # todo: temp icon - replace with final later
+        icon_path = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))),
+                                 'resources', icon_name)
+        icon_label = QLabel(self)
+        icon_pixmap = QPixmap(icon_path)
+        icon_label.setPixmap(icon_pixmap)
+        icon_layout = QHBoxLayout()
+        icon_layout.addStretch()
+        icon_layout.addWidget(icon_label)
+        icon_layout.addStretch()
+        layout.addLayout(icon_layout)
+
+        # Application name
+        name_label = QLabel(f"<h2>{APP_NAME}</h2>")
+        layout.addWidget(name_label)
+
+        # Description
+        description_label = QLabel(APP_DESCRIPTION)
+        layout.addWidget(description_label)
+
+        # Version
+        version_label = QLabel(f"<strong>Version:</strong> {APP_VERSION}")
+        layout.addWidget(version_label)
+
+        # Contributors
+        contributors_label = QLabel(f"Copyright © {APP_COPYRIGHT_YEAR} {APP_AUTHOR}")
+        layout.addWidget(contributors_label)
+
+        # License
+        license_label = QLabel(f"Released under {APP_LICENSE}")
+        layout.addWidget(license_label)
+
+        # Add an "OK" button to close the dialog
+        button_box = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok)
+        button_box.accepted.connect(self.accept)
+        layout.addWidget(button_box)
+
+        # Set the layout for the dialog
+        self.setLayout(layout)
+
+        # Make the dialog non-resizable
+        self.setWindowFlags(self.windowFlags() & ~Qt.WindowType.WindowContextHelpButtonHint)
+        self.setFixedSize(self.sizeHint())
+
+
+if __name__ == '__main__':
+    # lazy load GUI frameworks
+    from PyQt6.QtWidgets import QApplication
+
+    # load application
+    app: QApplication = QApplication(sys.argv)
+    window: AboutDialog = AboutDialog()
+    window.show()
+
+    app.exec()