Data sources: Grant creator edit permissions to data source by default (#46168)

* Data sources: Sent user ID when creating data source

* Data sources: Grant a data source creator edit permissions

* Use edit permisison and only append if user id is in command

Co-authored-by: Karl Persson <kalle.persson@grafana.com>

pkg/models/datasource.go

@@ -89,6 +89,7 @@ type AddDataSourceCommand struct {
 	Uid               string            `json:"uid"`
 
 	OrgId                   int64             `json:"-"`
+	UserId                  int64             `json:"-"`
 	ReadOnly                bool              `json:"-"`
 	EncryptedSecureJsonData map[string][]byte `json:"-"`