Fetch updated gamepad mappings each launch

app/settings/mappingfetcher.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <QObject>
+#include <QNetworkAccessManager>
+
+class MappingFetcher : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit MappingFetcher(QObject *parent = nullptr);
+
+    void start();
+
+private slots:
+    void handleMappingListFetched(QNetworkReply* reply);
+
+private:
+    QNetworkAccessManager m_Nam;
+};