[libcalamares] Introduce more descriptive type name

src/libcalamares/Settings.cpp

@@ -175,7 +175,7 @@ Settings::modulesSearchPaths() const
 }
 
 
-QList<QMap<QString, QString> >
+Settings::InstanceDescriptionList
 Settings::customModuleInstances() const
 {
     return m_customModuleInstances;

src/libcalamares/Settings.h

@@ -43,7 +43,9 @@ public:
 
     QStringList modulesSearchPaths() const;
 
-    QList< QMap< QString, QString > > customModuleInstances() const;
+    using InstanceDescription = QMap< QString, QString >;
+    using InstanceDescriptionList = QList< InstanceDescription >;
+    InstanceDescriptionList customModuleInstances() const;
 
     QList< QPair< ModuleAction, QStringList > > modulesSequence() const;
 
@@ -60,7 +62,7 @@ private:
 
     QStringList m_modulesSearchPaths;
 
-    QList< QMap< QString, QString > > m_customModuleInstances;
+    InstanceDescriptionList m_customModuleInstances;
     QList< QPair< ModuleAction, QStringList > > m_modulesSequence;
 
     QString m_brandingComponentName;

src/libcalamaresui/modulesystem/ModuleManager.cpp

@@ -159,7 +159,7 @@ ModuleManager::loadModules()
 {
     QTimer::singleShot( 0, this, [ this ]()
     {
-        QList< QMap< QString, QString > > customInstances =
+        Settings::InstanceDescriptionList customInstances =
                 Settings::instance()->customModuleInstances();
 
         const auto modulesSequence = Settings::instance()->modulesSequence();