remove remaining this references + fix shared_ptr bug in WarenStorage + remove some unneccessary spaces

src/StorageEditor/StorageEditor.cpp

@@ -3,7 +3,7 @@
 StorageEditor::StorageEditor() { }
 
 StorageEditor::StorageEditor(std::shared_ptr<WarenStorage> storage) {
-    this->storage = std::make_shared<WarenStorage>(new WarenStorage());
+    this->storage = storage;
 }
 
 std::shared_ptr<WarenStorage> StorageEditor::getWarenStorage() const {
@@ -11,7 +11,8 @@ std::shared_ptr<WarenStorage> StorageEditor::getWarenStorage() const {
 }
 
 void StorageEditor::setWarenStorage(const WarenStorage storage) {
-    this->storage = std::make_shared<WarenStorage>(storage);
+    //move might be unnecessary here
+    this->storage = std::make_shared<WarenStorage>(std::move(storage));
 }