Modify switchConnection

In switchConnection: the transaction must be passed as callback to setState because setState is asynchrounous.

collaborative/src/components/Game.tsx

@@ -143,7 +143,7 @@ class Game extends React.Component<Record<string, unknown>, IGameState> {
    * This function is used to simulate the offline mode.
    */
   switchConnection(): void {
-    this.setState({ isConnected: !this.state.isConnected });
+    this.setState({ isConnected: !this.state.isConnected }, () => {
       if (this.state.isConnected) {
         session.transaction(client.utils.ConsistencyLevel.None, () => {
           for (let index = 0; index < 81; index++) {
@@ -160,6 +160,7 @@ class Game extends React.Component<Record<string, unknown>, IGameState> {
         clearInterval(this.timeoutGet);
         this.modifiedCells = new Array(81).fill(null);
       }
+    });
   }
 
   /**