Added Speaking to level, fixed a bug where it was causing level to crash if the listening was already created and the section was switched, added true false exercises to listening

src/components/ExamEditor/Exercises/Writing/index.tsx

@@ -100,7 +100,7 @@ const Writing: React.FC<Props> = ({ sectionId, exercise, module, index }) => {
                     description='Generate or edit the instructions for the task'
                     editing={editing}
                     handleSave={handleSave}
-                    handleDelete={handleDelete}
+                    handleDelete={module == "level" ? handleDelete : undefined}
                     handleEdit={handleEdit}
                     handleDiscard={handleDiscard}
                     handlePractice={handlePractice}