Move HTTP service to public for plugin use (#27284)

* Move httpservice for use in plugins

* Adapt httpservice for plugin use

* Fix lint

server/platform/services/imageproxy/atmos_camo_test.go

@@ -14,8 +14,8 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/httpservice"
 	"github.com/mattermost/mattermost/server/v8/channels/utils/testutils"
-	"github.com/mattermost/mattermost/server/v8/platform/services/httpservice"
 )
 
 func makeTestAtmosCamoProxy() *ImageProxy {

server/platform/services/imageproxy/imageproxy.go

@@ -13,9 +13,9 @@ import (
 	"sync"
 
 	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/configservice"
+	"github.com/mattermost/mattermost/server/public/shared/httpservice"
 	"github.com/mattermost/mattermost/server/public/shared/mlog"
-	"github.com/mattermost/mattermost/server/v8/platform/services/configservice"
-	"github.com/mattermost/mattermost/server/v8/platform/services/httpservice"
 )
 
 var ErrNotEnabled = Error{errors.New("imageproxy.ImageProxy: image proxy not enabled")}

server/platform/services/imageproxy/local_test.go

@@ -14,8 +14,8 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/httpservice"
 	"github.com/mattermost/mattermost/server/v8/channels/utils/testutils"
-	"github.com/mattermost/mattermost/server/v8/platform/services/httpservice"
 )
 
 func makeTestLocalProxy() *ImageProxy {