split dialogs and war/campaign/round classes to files

src/warchron/view/player_dialog.py

@@ -0,0 +1,16 @@
+from PyQt6.QtWidgets import QWidget, QDialog
+
+from warchron.view.ui.ui_player_dialog import Ui_playerDialog
+
+
+class PlayerDialog(QDialog):
+    def __init__(
+        self, parent: QWidget | None = None, *, default_name: str = ""
+    ) -> None:
+        super().__init__(parent)
+        self.ui: Ui_playerDialog = Ui_playerDialog()
+        self.ui.setupUi(self)  # type: ignore
+        self.ui.playerName.setText(default_name)
+
+    def get_player_name(self) -> str:
+        return self.ui.playerName.text().strip()