Update .env.sample

Author: BRGOVIND

.env.sample

@@ -8,4 +8,4 @@ POSTGRES_HOST=localhost
 ROOT_DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}:5432/${POSTGRES_DB}
 RUST_ENV=development
 ROOT_SECRET=insecuresecret123 # Used to verify origin of attendance mutations
-ROOT_PORT=3000
+ROOT_PORT=8000