Handle empty alerts list
Handle empty alerts list

prometheus/alertmanager,tinytub/alertmanager,tyrken/alertmanager,joehandzik/alertmanager,GoogleCloudPlatform/alertmanager,Kellel/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,Aloomaio/alertmanager,tyrken/alertmanager,joehandzik/alertmanager,stuartnelson3/am-ui,GoogleCloudPlatform/alertmanager,stuartnelson3/am-ui,prometheus/alertmanager,Aloomaio/alertmanager,tyrken/alertmanager,Kellel/alertmanager,GoogleCloudPlatform/alertmanager,tyrken/alertmanager,prometheus/alertmanager,Kellel/alertmanager,tinytub/alertmanager,tinytub/alertmanager,joehandzik/alertmanager,Aloomaio/alertmanager