Update user to include "specialism"

[sebgro98]

Update User to include specialism. The model will look like this:

´´´´ model User { id Int @id @default(autoincrement()) email String @unique password String role Role @default(STUDENT) specialism String @default("") cohortId Int? cohorts Cohort[] posts Post[] comments Comment[] deliveryLogs DeliveryLog[] }

´´´

[sebgro98]

Approved

[amos1969]

Are the API Spec, Seeds etc going to be updated as part of this issue or will they have their own Issues?