fix(main): Correct command-line argument parsing

Resolved an issue where the `--address` and `--port` command-line arguments were being ignored due to a hardcoded IP address and an incorrect parsing loop.

This commit ensures that:
- The application correctly uses the address and port provided by the user.
- The application exits gracefully if required arguments are missing.
- The argument parsing logic is simplified and more explicit.

main.cpp

@@ -44,20 +44,21 @@ int main(int argc, char *argv[])
     if (!parser.isSet("address")) {
         qWarning() << "Hyperion address missing.";
         parser.showHelp();
+        return 1;
     }
 
     if (!parser.isSet("port")) {
         qWarning() << "Hyperion port missing.";
         parser.showHelp();
+        return 1;
     }
 
     QHash<QString, QString> opts;
-    QString optName;
-    for (int i = 0; i < parser.optionNames().size(); i++) {
-        optName = parser.optionNames().at(i);
-        opts.insert(optName, parser.value(optName));
+    for (const auto &optName : parser.optionNames()) {
+        if (parser.isSet(optName)) {
+            opts.insert(optName, parser.value(optName));
+        }
     }
-    opts.insert("address", "127.0.0.1"); // Force standard loopback IP
 
     grab = new HyperionGrabber(opts);
     return qapp->exec();