refactor: split formatters and matchers into separated singleton classes (#166)

* split formatter into separated singleton classes

* split data engine matchers to classes

* nodiscard attribute for formatter methods

* small refactoring in matchers

* fix codefactor warnings

* fix test building

sources/awesome-widget/plugin/awkeycache.h

@@ -17,15 +17,16 @@
 
 #pragma once
 
-#include <QHash>
 #include <QString>
 #include <QVariant>
 
+#include <matchers/awpluginmatchersettings.h>
+
 
 namespace AWKeyCache
 {
 bool addKeyToCache(const QString &_type, const QString &_key = "");
 QStringList getRequiredKeys(const QStringList &_keys, const QStringList &_bars, const QVariantMap &_tooltip,
                             const QStringList &_userKeys, const QStringList &_allKeys);
-QHash<QString, QStringList> loadKeysFromCache();
+AWPluginMatcherSettings loadKeysFromCache();
 } // namespace AWKeyCache