style: fix linting issues met Prettier

backend/src/controllers/assignments.ts

@@ -64,7 +64,6 @@ export async function getAssignmentsSubmissionsHandler(req: Request<AssignmentPa
     const assignmentNumber = +req.params.id;
     const full = req.query.full === 'true';
 
-
     if (isNaN(assignmentNumber)) {
         res.status(400).json({ error: 'Assignment id must be a number' });
         return;

backend/src/controllers/submissions.ts

@@ -39,7 +39,7 @@ export async function createSubmissionHandler(req: Request, res: Response) {
         res.status(400).json({ error: 'Failed to create submission' });
         return;
     }
-    
+
     res.json(submission);
 }
 

backend/src/controllers/teachers.ts

@@ -57,7 +57,7 @@ export async function createTeacherHandler(req: Request, res: Response) {
     const newUser = await createTeacher(userData);
 
     if (!newUser) {
-        res.status(400).json({ error: "Failed to create teacher" });
+        res.status(400).json({ error: 'Failed to create teacher' });
         return;
     }