from PySide6 import QtWidgets
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QLineEdit, QWidget, QVBoxLayout
import sys

class MainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Software Manager")
        self.setGeometry(100, 100, 800, 600)

        self.controls = QWidget()
        self.controlsLayout = QVBoxLayout()

        # Searchbar
        self.searchbar = QLineEdit()

        container = QWidget()
        containerLayout = QVBoxLayout()
        containerLayout.addWidget(self.searchbar)

        container.setLayout(containerLayout)
        self.setCentralWidget(container)

        containerLayout.setAlignment(Qt.AlignmentFlag.AlignTop)

if __name__ == "__main__":
    app = QtWidgets.QApplication([])

    widget = MainWindow()
    widget.show()

    sys.exit(app.exec())