refactor: set the plugin name as the first argument to the service-action trigger

This is a breaking change, but is necessary as otherwise it is impossible to know which datastore plugin a team is meant for.

subcommands/destroy

@@ -41,7 +41,7 @@ service-destroy-cmd() {
   fi
 
   dokku_log_info2_quiet "Deleting $SERVICE"
-  plugn trigger service-action pre-delete "$SERVICE"
+  plugn trigger service-action pre-delete "$PLUGIN_COMMAND_PREFIX" "$SERVICE"
   service_backup_unschedule "$SERVICE"
   service_container_rm "$SERVICE"
 
@@ -49,7 +49,7 @@ service-destroy-cmd() {
   docker run --rm -v "$SERVICE_HOST_ROOT/data:/data" -v "$SERVICE_HOST_ROOT/$PLUGIN_CONFIG_SUFFIX:/config" "$PLUGIN_BUSYBOX_IMAGE" chmod 777 -R /config /data
   rm -rf "$SERVICE_ROOT"
 
-  plugn trigger service-action post-delete "$SERVICE"
+  plugn trigger service-action post-delete "$PLUGIN_COMMAND_PREFIX" "$SERVICE"
   dokku_log_info2 "$PLUGIN_SERVICE container deleted: $SERVICE"
 }