feat(tem): rename product from TEM to TransactionalEmail for clarity (#189)

Author: Vinzius

packages/clients/src/api/index.ts

@@ -16,6 +16,6 @@ export * as RDB from './rdb'
 export * as Redis from './redis'
 export * as Registry from './registry'
 export * as Test from './test'
-export * as TEM from './tem'
+export * as TransactionalEmail from './tem'
 export * as VPC from './vpc'
 export * as VPCGW from './vpcgw'