Implement confirm user functionality

This commit adds the necessary functionality to confirm a user's account.

It includes the addition of a new column in the user table to track whether an account is confirmed or not, and the implementation of JWT for confirmation tokens.

This commit integrates the SparkPost API as well as React Email to send dynamic emails for whatever purpose.

Upon user registration, a confirmation email will be sent to the user.

prisma/schema.prisma

@@ -11,23 +11,24 @@ datasource db {
 }
 
 model User {
-  id              String           @id @default(uuid())
-  username        String           @unique
-  firstName       String
-  lastName        String
-  hash            String
-  email           String           @unique
-  createdAt       DateTime         @default(now()) @db.Timestamptz(3)
-  updatedAt       DateTime?        @updatedAt @db.Timestamptz(3)
-  dateOfBirth     DateTime
-  beerPosts       BeerPost[]
-  beerTypes       BeerType[]
-  breweryPosts    BreweryPost[]
-  beerComments    BeerComment[]
-  breweryComments BreweryComment[]
-  BeerPostLikes   BeerPostLike[]
-  BeerImage       BeerImage[]
-  BreweryImage    BreweryImage[]
+  id                String           @id @default(uuid())
+  username          String           @unique
+  firstName         String
+  lastName          String
+  hash              String
+  email             String           @unique
+  createdAt         DateTime         @default(now()) @db.Timestamptz(3)
+  updatedAt         DateTime?        @updatedAt @db.Timestamptz(3)
+  isAccountVerified Boolean          @default(false)
+  dateOfBirth       DateTime
+  beerPosts         BeerPost[]
+  beerTypes         BeerType[]
+  breweryPosts      BreweryPost[]
+  beerComments      BeerComment[]
+  breweryComments   BreweryComment[]
+  BeerPostLikes     BeerPostLike[]
+  BeerImage         BeerImage[]
+  BreweryImage      BreweryImage[]
 }
 
 model BeerPost {