added pragma once to every hpp file

src/editor/EventBroker.hpp

 #pragma once
+
 #include <cstdint>
 #include <vector>
 #include <algorithm>

src/editor/LevelNameEdit.hpp

+#pragma once
+
 #include <QLineEdit>
 
 class LevelNameEdit : public QLineEdit {

src/editor/LevelScene.hpp

-#ifndef LEVELSCENE_HPP
-#define LEVELSCENE_HPP
+#pragma once
 
 #include <QGraphicsScene>
 #include <QMouseEvent>
@@ -33,5 +32,3 @@ private:
     std::vector<QGraphicsPixmapItem*> tile_occupants;
     std::string file_path;
 };
\ No newline at end of file
-
-#endif // LEVELSCENE_HPP
\ No newline at end of file

src/editor/LevelTitle.hpp

+#pragma once
+
 #include <QLabel>
 #include "EventBroker.hpp"
 

src/editor/LevelView.hpp

+#pragma once
+
 #include <QGraphicsView>
 #include "LevelScene.hpp"
 #include "EventBroker.hpp"

src/editor/MainWindow.hpp

+#pragma once
+
 #include <QMainWindow>
 #include "LevelScene.hpp"
 #include "EventBroker.hpp"

src/editor/SaveButton.hpp

+#pragma once
+
 #include <QPushButton>
 
 class SaveButton : public QPushButton {

src/editor/SpriteProvider.hpp

 #pragma once
+
 #include <QPixmap>
 #include <vector>
 #include "highfive/H5File.hpp"

src/editor/Tile.hpp

 #pragma once
+
 #include <QGraphicsPixmapItem>
 
 class Tile : public QGraphicsPixmapItem {

src/editor/TileButton.hpp

+#pragma once
+
 #include <QPushButton>
 
 class TileButton : public QPushButton {

src/editor/TileSelector.hpp

+#pragma once
+
 #include <QScrollArea>
 #include <QLabel>
 #include <QPushButton>

src/editor/TopBar.hpp

+#pragma once
+
 #include <QToolBar>
 
 class TopBar : public QToolBar {

src/editor/ZoomInButton.hpp

+#pragma once
+
 #include <QPushButton>
 
 class ZoomInButton : public QPushButton {

src/editor/ZoomInfo.hpp

+#pragma once
+
 #include <QPushButton>
 #include "EventBroker.hpp"
 

src/editor/ZoomOutButton.hpp

+#pragma once
+
 #include <QPushButton>
 
 class ZoomOutButton : public QPushButton {