Re-order Dynamo format derivers to avoid warnings

```
[warn] /Users/david_furey/code/facia-tool/app/controllers/UserDataController.scala:23:69: Reference to uninitialized value Trail
[warn]   implicit val UserData: DynamoFormat[UserData] = deriveDynamoFormat[UserData]
[warn]                                                                     ^
[warn] /Users/david_furey/code/facia-tool/app/controllers/UserDataController.scala:24:63: Reference to uninitialized value JsValue
[warn]   implicit val Trail: DynamoFormat[Trail] = deriveDynamoFormat[Trail]
[warn]                                                               ^
[warn] two warnings found
```

app/controllers/UserDataController.scala

@@ -20,16 +20,15 @@ import org.scanamo.generic.semiauto._
 import scala.util.{Failure, Success, Try}
 
 class UserDataController(frontsApi: FrontsApi, dynamoClient: DynamoDbClient, val deps: BaseFaciaControllerComponents)(implicit ec: ExecutionContext) extends BaseFaciaController(deps) {
- implicit val UserData: DynamoFormat[UserData] = deriveDynamoFormat[UserData]
- implicit val Trail: DynamoFormat[Trail] = deriveDynamoFormat[Trail]
- implicit val JsValue: DynamoFormat[JsValue] = DynamoFormat.xmap[JsValue, String](
+ implicit val jsValue: DynamoFormat[JsValue] = DynamoFormat.xmap[JsValue, String](
  x => Try(Json.parse(x)) match {
  case Success(y) => Right(y)
  case Failure(t) => Left(TypeCoercionError(t))
  },
  x => (Json.stringify(x))
  )
-
+ implicit val trail: DynamoFormat[Trail] = deriveDynamoFormat[Trail]
+ implicit val userData: DynamoFormat[UserData] = deriveDynamoFormat[UserData]
  private lazy val userDataTable = Table[UserData](config.faciatool.userDataTable)
 
  private def updateClipboardContentByFieldName(articles: Option[JsValue], userEmail: String, fieldName: String) = {