update createAccount resolver, typedefs

@@ -3,6 +3,7 @@ type Mutation {
     username: String!
     email: String!
     password: String!
+    password2: String!
     bio: String
     avatarUrl: String
     phoneNum: String!

@@ -4,13 +4,24 @@ import bcrypt from "bcryptjs";
 export default {
   Mutation: {
     createAccount: async (_, args) => {
-      const { name, password, email, bio, avatarUrl, phoneNum } = args;
+      const {
+        username,
+        password,
+        password2,
+        email,
+        bio,
+        avatarUrl,
+        phoneNum,
+      } = args;
+      if (password !== password2) {
+        throw new Error("two password aren't same each other");
+      }
       const encryptPw = await bcrypt.hash(password, 10);
       // TODO: Find user's country code and change new phone number value
       const newPhoneNumber = await changePhoneNumber(phoneNum, "+82");
       const user = await prisma.user.create({
         data: {
-          name,
+          username,
           email,
           bio,
           avatarUrl,