♻️ Convert plugin to c++

src/plugin.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <albert/backgroundexecutor.h>
+#include <albert/extensionplugin.h>
+#include <albert/indexqueryhandler.h>
+
+class QWidget;
+
+class Plugin : public albert::ExtensionPlugin,
+               public albert::IndexQueryHandler
+{
+    ALBERT_PLUGIN
+
+public:
+    Plugin();
+
+private:
+    QString defaultTrigger() const override;
+    QWidget* buildConfigWidget() override;
+    void updateIndexItems() override;
+    QString synopsis(const QString &) const override;
+    std::vector<albert::RankItem> rankItems(albert::QueryContext &) override;
+
+    albert::BackgroundExecutor<std::vector<albert::IndexItem>> indexer;
+};