qt: fetch existing parameters when building parameter list

Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>

Author: kwvg

src/qt/rpcconsole.cpp

@@ -820,8 +820,17 @@ void RPCConsole::walletReindex()
 void RPCConsole::buildParameterlist(QString arg)
 {
     // Get command-line arguments and remove the application name
-    QStringList args = QApplication::arguments();
-    args.removeFirst();
+    QStringList args;
+
+    for (const auto& [key, values] : gArgs.GetCommandLineArgs()) {
+        for (const auto& value : values) {
+            if (value.getValStr().empty()) {
+                args << QString::fromStdString("-" + key);
+            } else {
+                args << QString::fromStdString("-" + key + "=" + value.getValStr());
+            }
+        }
+    }
 
     // Remove existing repair-options
     args.removeAll(RESCAN1);