fix: save and load are now buttons

Really small change so me and Arthur can work on this toegether at the same time

feat: N25B-189

src/pages/VisProgPage/visualProgrammingUI/components/DragDropSidebar.tsx

@@ -139,12 +139,12 @@ export function DndToolbar() {
           You can save and load your graph here.
         </div>
         <div className={`flex-row gap-lg ${styles.dndNodeContainer}`}>
-          <DraggableNode className={styles.draggableNodePhase} nodeType="phase" onDrop={handleNodeDrop}>
+          <button className={styles.draggableNodePhase}>
             Save Graph
-          </DraggableNode>
-          <DraggableNode className={styles.draggableNodeNorm} nodeType="norm" onDrop={handleNodeDrop}>
+          </button>
+          <button className={styles.draggableNodeNorm} >
             Load Graph
-          </DraggableNode>
+          </button>
         </div>
       </div>