server/public/ -- pre-requisite changes (#23278)

* invert depdendency: filestore -> model

* markdown: nolint:misspell

* inline jsonutils within model

* push model.GetInfoForBytes -> channels/app

* push channel/utils.CompileGo* -> plugin/utils

* push plugin/scheduler -> channels/jobs/plugins

* push utils.Copy(File|Dir) -> model

* oauthproiders/gitlab -> channels/app/oauthproviders/gitlab

* decouple plugin from einterfaces.MetricsInterface

* fix TestGetInfoForFile

* Revert "Run golangci in server CI (#23240)"

This reverts commit 349e5d4573.

* add model/utils

---------

Co-authored-by: Agniva De Sarker <agnivade@yahoo.co.in>

server/channels/app/users/profile_picture.go

@@ -59,7 +59,7 @@ func (us *UserService) GetProfileImage(user *model.User) ([]byte, bool, error) {
 func (us *UserService) FileBackend() (filestore.FileBackend, error) {
 	license := us.license()
 	insecure := us.config().ServiceSettings.EnableInsecureOutgoingConnections
-	backend, err := filestore.NewFileBackend(us.config().FileSettings.ToFileBackendSettings(license != nil && *license.Features.Compliance, insecure != nil && *insecure))
+	backend, err := filestore.NewFileBackend(filestore.NewFileBackendSettingsFromConfig(&us.config().FileSettings, license != nil && *license.Features.Compliance, insecure != nil && *insecure))
 	if err != nil {
 		return nil, err
 	}