Implemented a password reset timeout

ref #40

src/models/entities/User.ts

@@ -111,6 +111,15 @@ export class User extends Principal {
   @IsOptional()
   profilePic?: string;
 
+  /**
+  * The last time the user requested a password reset.
+  * Used to prevent spamming of the password reset route.
+  */
+  @Column({ nullable: true, unique: true })
+  @IsString()
+  @IsOptional()
+  resetRequestedTimestamp?: number;
+
   /**
    * The actions performed by this user.
    * For documentation purposes only, will be implemented later.