Mark valid usecases for alert

app/assets/javascripts/edit/id.js.erb

@@ -2,6 +2,7 @@ $(document).ready(function () {
   const id = $("#id-embed");
 
   if (id.data("configured") === false) {
+    // eslint-disable-next-line no-alert
     alert(I18n.t("site.edit.id_not_configured"));
     return;
   }

app/assets/javascripts/index.js

@@ -255,6 +255,7 @@ $(document).ready(function () {
       fetch(url, { mode: "no-cors", signal: AbortSignal.timeout(5000) })
         .then(callback)
         .catch(function () {
+          // eslint-disable-next-line no-alert
           alert(I18n.t("site.index.remote_failed"));
         });
     }

app/assets/javascripts/index/directions-endpoint.js

@@ -108,6 +108,7 @@ OSM.DirectionsEndpoint = function Endpoint(map, input, iconUrl, dragCallback, ch
       delete endpoint.geocodeRequest;
       if (json.length === 0) {
         input.addClass("is-invalid");
+        // eslint-disable-next-line no-alert
         alert(I18n.t("javascripts.directions.errors.no_place", { place: endpoint.value }));
         return;
       }