MM-8853: Adding MANAGE_EMOJIS and MANAGE_OTHERS_EMOJIS permissions (#8860)

* MM-8853: Adding MANAGE_EMOJIS and MANAGE_OTHERS_EMOJIS permissions

* MM-8853: Removing unnecesary emoji enterprise feature

* Create emojis migration

* Adding MANAGE_EMOJIS and MANAGE_OTHERS_EMOJIS always to system admins

* Simplifing permissions checks

* Revert "Simplifing permissions checks"

This reverts commit e2cafc1905fc9e20125dd9a1552d2d0c7340ae59.

cmd/mattermost/commands/init.go

@@ -23,6 +23,7 @@ func InitDBCommandContextCobra(command *cobra.Command) (*app.App, error) {
 	}
 
 	a.DoAdvancedPermissionsMigration()
+	a.DoEmojisPermissionsMigration()
 
 	return a, nil
 }

cmd/mattermost/commands/server.go

@@ -92,6 +92,7 @@ func runServer(configFileLocation string, disableConfigWatch bool, usedPlatform
 	}
 
 	a.DoAdvancedPermissionsMigration()
+	a.DoEmojisPermissionsMigration()
 
 	a.InitPlugins(*a.Config().PluginSettings.Directory, *a.Config().PluginSettings.ClientDirectory, nil)
 	a.AddConfigListener(func(prevCfg, cfg *model.Config) {