fix(webui): webreader crash when reading one-shot from collection context

Closes: #1374

komga-webui/src/views/DivinaReader.vue

@@ -667,6 +667,9 @@ export default Vue.extend({
           id: this.$route.query.contextId as string,
         }
         this.book.context = this.context
+      }
+
+      if (this?.context.origin === ContextOrigin.READLIST) {
         this.contextName = (await (this.$komgaReadLists.getOneReadList(this.context.id))).name
         document.title = `Komga - ${this.contextName} - ${this.book.metadata.title}`
       } else {