refractor + style tweaks

- bugfix on lower
- delay between 0-60 minutes
- action buttons in dropdown
- added button for toggling element visibility
- several css and code cleanups
- renamed settingsAPI

client/src/features/editors/list/EventListWrapper.jsx

@@ -24,11 +24,14 @@ export default function EventListWrapper() {
     // we optimistically update here
     onMutate: async (newEvent) => {
       // cancel ongoing queries
-      queryClient.cancelQueries(eventsNamespace);
+      queryClient.cancelQueries(eventsNamespace, { exact: true });
 
       // Snapshot the previous value
-      const previousEvents = queryClient.getQueryData(eventsNamespace);
-
+      let previousEvents = queryClient.getQueryData(eventsNamespace);
+      if (previousEvents == null) {
+        await queryClient.refetchQueries();
+        previousEvents = queryClient.getQueryData(eventsNamespace);
+      }
       // optimistically update object, temp ID until refetch
       let optimistic = [...previousEvents];
       optimistic.splice(newEvent.order, 0, {