style colour length to 7 from 6

prisma/schema.prisma

@@ -61,18 +61,14 @@ model MessageStyle {
   id                  Int          @id @default(autoincrement())
   guild_id            String
   name                String
-
+  colour              String       @db.VarChar(7) // hex colour: #5865F2
   show_author         Boolean
   show_image          Boolean
   show_thumbnail      Boolean
   show_footer         Boolean
   show_timestamp      Boolean
-
-  colour String @db.VarChar(6)
-
   title_mutator       TextMutator?
   description_mutator TextMutator?
-
   created_at          DateTime     @default(now())
   updated_at          DateTime     @updatedAt