fix(core): Make email for UM case insensitive (#3078)

* 🚧 lowercasing email

* ✅ add tests for case insensitive email

* 🐘 add migration to lowercase email

* 🚚 rename migration

* 🐛 fix package.lock

* 🐛 fix double import

* 📋 add todo

packages/cli/src/databases/entities/User.ts

@@ -12,6 +12,7 @@ import {
 	ManyToOne,
 	PrimaryGeneratedColumn,
 	UpdateDateColumn,
+	BeforeInsert,
 } from 'typeorm';
 import { IsEmail, IsString, Length } from 'class-validator';
 import * as config from '../../../config';
@@ -20,7 +21,7 @@ import { Role } from './Role';
 import { SharedWorkflow } from './SharedWorkflow';
 import { SharedCredentials } from './SharedCredentials';
 import { NoXss } from '../utils/customValidators';
-import { answersFormatter } from '../utils/transformers';
+import { answersFormatter, lowerCaser } from '../utils/transformers';
 
 export const MIN_PASSWORD_LENGTH = 8;
 
@@ -62,7 +63,11 @@ export class User {
 	@PrimaryGeneratedColumn('uuid')
 	id: string;
 
-	@Column({ length: 254, nullable: true })
+	@Column({
+		length: 254,
+		nullable: true,
+		transformer: lowerCaser,
+	})
 	@Index({ unique: true })
 	@IsEmail()
 	email: string;
@@ -119,8 +124,10 @@ export class User {
 	})
 	updatedAt: Date;
 
+	@BeforeInsert()
 	@BeforeUpdate()
-	setUpdateDate(): void {
+	preUpsertHook(): void {
+		this.email = this.email?.toLowerCase();
 		this.updatedAt = new Date();
 	}