#1524 created a migration for date deleted

Author: Aaryan1203

src/backend/src/prisma/migrations/20231116012435_material_type_date_deleted/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "Material_Type" ADD COLUMN     "dateDeleted" TIMESTAMP(3);

src/backend/src/prisma/schema.prisma

@@ -519,7 +519,7 @@ model Material {
 model Material_Type {
   name        String     @id
   dateCreated DateTime
-  dateDeleted DateTime
+  dateDeleted DateTime?
   creatorId   Int
   materials   Material[]
 }