Wait on update exit

app/src/main/java/io/xpipe/app/update/UpdateHandler.java

@@ -229,6 +229,11 @@ public abstract class UpdateHandler {
                         preparedUpdate.getValue().getVersion());
                 AppCache.update("performedUpdate", performedUpdate);
             }
+
+            // In case we perform any operations such as opening a terminal
+            // give it some time to open while this process is still alive
+            // Otherwise it might quit because the parent process is dead already
+            ThreadHelper.sleep(1000);
         });
     }