Pr 9039 (#9187)

* MM-11065: Allow to search and get archived channels from the API

* Fixing more tests

* Add some unit tests

* Add includeDeleted parameter to session permissions check function

* More test fixing

* Adding archive channels list in channels search

* Add restriction for archived channel edition

* Reverting permissions checks modification

* Changed the query parameter to include_deleted

* Enable search archive channels as true by default

* Adding tests for verify search on deleted channels

* Allowing to override archive channels during the imports

* Fixed test

* Search in archive channels from the API must be explicitly requested

* Removing includeDeleted parameter from GetChannelByName and GetChannelByNameForTeam

* Back to ViewArchivedChannels config

* Fixing tests

* Reverting GetChannelByName parameter

* Add include deleted parameter on GetChannel functions in plugins api

* Fixing tests

app/team.go

@@ -715,7 +715,7 @@ func (a *App) LeaveTeam(team *model.Team, user *model.User, requestorId string)
 
 	var channelList *model.ChannelList
 
-	if result := <-a.Srv.Store.Channel().GetChannels(team.Id, user.Id); result.Err != nil {
+	if result := <-a.Srv.Store.Channel().GetChannels(team.Id, user.Id, true); result.Err != nil {
 		if result.Err.Id == "store.sql_channel.get_channels.not_found.app_error" {
 			channelList = &model.ChannelList{}
 		} else {