feat: add default for requiredDurationSeconds in PlaylistEditor component

We don’t always have a required duration.

src/components/playlist/APlaylistEditor.vue

@@ -10,7 +10,7 @@
     />
 
     <APlaylistDurationCheck
-      v-if="playlist && playlist.entries.length > 0"
+      v-if="playlist && playlist.entries.length > 0 && requiredDurationSeconds > 0"
       :playlist="playlist"
       :required-duration-seconds="requiredDurationSeconds"
       class="tw-mb-6"
@@ -143,12 +143,17 @@ import SaveIndicator from '@/components/generic/SaveIndicator.vue'
 import APlaylistDurationCheck from '@/components/playlist/APlaylistDurationCheck.vue'
 import APlaylistEntries from '@/components/playlist/APlaylistEntries.vue'
 
-const props = defineProps<{
-  show: Show
-  requiredDurationSeconds: number
-  playlist: Playlist | null
-  useExpertMode?: boolean
-}>()
+const props = withDefaults(
+  defineProps<{
+    show: Show
+    requiredDurationSeconds?: number
+    playlist: Playlist | null
+    useExpertMode?: boolean
+  }>(),
+  {
+    requiredDurationSeconds: -1,
+  },
+)
 const emit = defineEmits<{
   create: [Playlist]
 }>()