Move server function to the bottom and change "utils" file name to "localserver"

src/localserver.cpp

@@ -0,0 +1,22 @@
+#include "localserver.h"
+
+bool isProgramRunning(const QString &program_name) {
+  QLocalSocket socket;
+  socket.connectToServer(program_name);
+  if (socket.waitForConnected()) {
+    return true; // program is already running
+  }
+  return false;
+}
+
+void showErrorMessage(const char *text) {
+  QMessageBox msgBox;
+
+  msgBox.setIcon(QMessageBox::Critical);
+  msgBox.setText(text);
+  msgBox.setStandardButtons(QMessageBox::Ok);
+  msgBox.setDefaultButton(QMessageBox::Ok);
+  msgBox.setWindowIcon(QIcon(":assets/de.shorsh.discord-screenaudio.png"));
+
+  msgBox.exec();
+}