MM-54123 Add group to channel (#22954)

* adding group members to channel initial commit

* adding group to channel functionality along with add new team members

* fixing circular dependency

* fixing e2e and other optimizations

* adding e2e tests for adding group members to channels

* cypress lint

* fixing comments

* adding count to button

* improvements

* adjusting some stuff from PR comments

* remove ability to add user to team, update message for non-team members

* remove adding to team from add groups functionality

* update misspelled variable

* lint and unit test fixes

* add tests, cleanup

* lint fix

* revert package-lock.json

* fixes for cypress tests

* rename TeamInviteBanner to TeamWarningBanner, since invites are no longer allowed

* update for warning

* lint fixes

* cleanup

* fix failing e2e tests

* update messages to not use markdown

---------

Co-authored-by: Scott Bishel <scott.bishel@mattermost.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/api4/group.go

@@ -117,6 +117,7 @@ func getGroup(c *Context, w http.ResponseWriter, r *http.Request) {
 
 	group, appErr := c.App.GetGroup(c.Params.GroupId, &model.GetGroupOpts{
 		IncludeMemberCount: c.Params.IncludeMemberCount,
+		IncludeMemberIDs:   c.Params.IncludeMemberIDs,
 	}, restrictions)
 	if appErr != nil {
 		c.Err = appErr
@@ -998,6 +999,7 @@ func getGroups(c *Context, w http.ResponseWriter, r *http.Request) {
 		Source:                    source,
 		FilterHasMember:           c.Params.FilterHasMember,
 		IncludeTimezones:          includeTimezones,
+		IncludeMemberIDs:          c.Params.IncludeMemberIDs,
 		IncludeArchived:           includeArchived,
 	}