Create internal/app package for easy access to globals

server/sql/queries/users.sql

@@ -1,10 +1,9 @@
--- name: CreateUser :one
+-- name: CreateUser :exec
 INSERT INTO users(
     username, display_name, password_hash
 ) VALUES (
     $1, $2, $3
-)
-RETURNING *;
+);
 
 -- name: UserByUsername :one
 SELECT * from users WHERE username = $1;