feat: add name field

Adds support for a name field which will be prefilled with the recipients name if they haven't signed a form on Documenso before.

packages/prisma/migrations/20230419055523_doc_170_add_name_field_type/migration.sql

@@ -0,0 +1,2 @@
+-- AlterEnum
+ALTER TYPE "FieldType" ADD VALUE 'NAME';

packages/prisma/schema.prisma

@@ -101,6 +101,7 @@ model Recipient {
 }
 
 enum FieldType {
+  NAME
   SIGNATURE
   FREE_SIGNATURE
   DATE