[MM-16174] Migrate Team.SaveMember to Sync by default #11125 (#11354)

* Migrate Team.SaveMember to Sync by default #11125

* Update migrate Team.SaveMember to Sync by default #11125

* Update migrate Team.SaveMember to Sync by default #11125

* fix shadow var #11125

* fix shadow vars #11125

* fix shadow vars #11125

* fix shadow vars #11125

* run gofmt

* Fixing tests

* Fix undefined var res

* Fixing shadow variable

* fixing tests

* Addressing PR comments

* Fixing build

* Fixing compilation after merge

* Addressing PR comments

manualtesting/manual_testing.go

@@ -100,7 +100,7 @@ func manualTest(c *web.Context, w http.ResponseWriter, r *http.Request) {
 		}
 
 		c.App.Srv.Store.User().VerifyEmail(user.Id, user.Email)
-		<-c.App.Srv.Store.Team().SaveMember(&model.TeamMember{TeamId: teamID, UserId: user.Id}, *c.App.Config().TeamSettings.MaxUsersPerTeam)
+		c.App.Srv.Store.Team().SaveMember(&model.TeamMember{TeamId: teamID, UserId: user.Id}, *c.App.Config().TeamSettings.MaxUsersPerTeam)
 
 		userID = user.Id