feat: multi synced player scores

app/src/main/java/gui/menu/MultiPlayerDokuView.java

@@ -4,6 +4,7 @@ import gui.SudokuRenderer;
 import imgui.ImGui;
 import network.client.Client;
 import network.server.Server;
+import sudoku.structure.Cell;
 
 public class MultiPlayerDokuView extends BaseView{
 
@@ -16,9 +17,14 @@ public class MultiPlayerDokuView extends BaseView{
 		this.client = client;
 		this.server = server;
 		this.sudokuRenderer = new SudokuRenderer(this.client.getGame().getDoku());
+		this.sudokuRenderer.onCellChange.connect(this::onCellChange);
 		this.client.onDisconnect.connect(this::onDisconnect);
 	}
 
+	private void onCellChange(Cell cell) {
+		this.client.sendCellChange(cell);
+	}
+
 	public void onDisconnect() {
 		if (server == null) {
 			closeMenu();