preferencestore (#15018)

* Starting migration

* Migration finished

* Fix i18n

* Fix some tests

* Fix typos

* Remove overwite of http status

* Add i18n string

* Fix i18n

* fix breakages

* fix tests

Co-authored-by: Rodrigo Villablanca <villa061004@gmail.com>

app/team.go

@@ -984,7 +984,7 @@ func (a *App) RemoveTeamMemberFromTeam(teamMember *model.TeamMember, requestorId
 
 	// delete the preferences that set the last channel used in the team and other team specific preferences
 	if err := a.Srv().Store.Preference().DeleteCategory(user.Id, teamMember.TeamId); err != nil {
-		return err
+		return model.NewAppError("RemoveTeamMemberFromTeam", "app.preference.delete.app_error", nil, err.Error(), http.StatusInternalServerError)
 	}
 
 	a.ClearSessionCacheForUser(user.Id)