Dont zoomDefault on timer update

src/lib/components/Reader/MangaPage.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import type { Page } from '$lib/types';
-  import { onMount } from 'svelte';
+  import { afterUpdate, onMount } from 'svelte';
   import TextBoxes from './TextBoxes.svelte';
   import { zoomDefault } from '$lib/panzoom';
 
@@ -12,6 +12,10 @@
   onMount(() => {
     zoomDefault();
   });
+
+  afterUpdate(() => {
+    zoomDefault();
+  });
 </script>
 
 <div

src/lib/components/Reader/Reader.svelte

@@ -199,8 +199,19 @@
     }
   }
 
+  let shouldUpdate = false;
+
+  function handleUpdate() {
+    shouldUpdate = true;
+  }
+
+  $: volumeSettings.singlePageView && handleUpdate();
+
   afterUpdate(() => {
-    zoomDefault();
+    if (shouldUpdate) {
+      shouldUpdate = false;
+      zoomDefault();
+    }
   });
 </script>