feat: back password reset email (#277)

back/prisma/migrations/20230920151856_/migration.sql

@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[email]` on the table `User` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateIndex
+CREATE UNIQUE INDEX "User_email_key" ON "User"("email");

back/prisma/migrations/20230921103156_/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "User" ALTER COLUMN "email" DROP NOT NULL;

back/prisma/schema.prisma

@@ -19,7 +19,7 @@ model User {
     id            Int             @id @default(autoincrement())
     username      String          @unique
     password      String?
-    email         String
+    email         String?          @unique
     emailVerified Boolean         @default(false)
     googleID      String?         @unique
     isGuest       Boolean         @default(false)