Added some missing javaDoc and removed some todos

src/main/java/edu/ntnu/idatt210602/matsvinnbackend/controller/AccountController.java

@@ -42,7 +42,7 @@ public class AccountController {
      *
      * Possible responses are HTTP 201 Created or HTTP 409 Conflict if another account with the same email already exists
      *
-     * @param request
+     * @param request request with email, password and first name
      */
     @PostMapping(path = "")
     @ResponseStatus(code = HttpStatus.CREATED)
@@ -61,7 +61,6 @@ public class AccountController {
 
         Account account = accountRepository.save(newAccount);
 
-        //TODO add default profile picture path
         Profile profile = new Profile(request.firstname(), "", false, account.getId());
         profileRepository.save(profile);