Fixes for logbook card (#7645)

src/panels/lovelace/cards/hui-logbook-card.ts

@@ -51,7 +51,7 @@ export class HuiLogbookCard extends LitElement implements LovelaceCard {
     );
 
     return {
-      entity: foundEntities,
+      entities: foundEntities,
     };
   }
 

src/translations/en.json

@@ -2573,6 +2573,10 @@
               "name": "Grid",
               "description": "The Grid card allows you to show multiple cards in a grid."
             },
+            "logbook": {
+              "name": "Logbook",
+              "description": "The Logbook card shows a list of events for entities."
+            },
             "history-graph": {
               "name": "History Graph",
               "description": "The History Graph card allows you to display a graph for each of the entities listed."