filter out part of string after @

List names when using soundreactive fork introduces artifacts where `@` followed with some variables are added to the name

Author: basbruss

custom_components/ui_lovelace_minimalist/lovelace/ulm_templates/popup_templates/popup_layouts/popup_light_effect_row.yaml

@@ -3,7 +3,8 @@ popup_light_effect_row:
   template: "popup_row_layout"
   name: >
     [[[
-      var name = entity.attributes.effect_list[variables.ulm_popup_light_effect_entity_idx];
+      var attribute = entity.attributes.effect_list[variables.ulm_popup_light_effect_entity_idx].toString()
+      var name = (attribute.includes("@") >= 1) ? attribute.substr(0, attribute.indexOf("@")) : attribute;
       return name;
     ]]]
   state: