fix suggestions

Author: matt-fidd

src/account-db.js

@@ -49,7 +49,7 @@ export function bootstrap(password) {
 }
 
 export function login(password) {
-  if (password == null || password === '') {
+  if (password === undefined || password === '') {
     return { error: 'invalid-password' };
   }
 

src/app-account.js

@@ -43,9 +43,9 @@ app.post('/login', (req, res) => {
   if (error) {
     res.status(400).send({ status: 'error', reason: error });
     return;
-  } else {
-    res.send({ status: 'ok', data: { token } });
   }
+
+  res.send({ status: 'ok', data: { token } });
 });
 
 app.post('/change-password', (req, res) => {