Added the store for dynamically changing the popup titles

src/routes/+layout.svelte

@@ -4,6 +4,7 @@
   import Footer from "$components/layout/Footer.svelte";
   import { initializeLinksReplacement } from "$lib/popup-links";
   import { onDestroy } from "svelte";
+  import { headTitle } from "$stores/popup";
 
   interface Props {
     children?: import('svelte').Snippet;
@@ -22,6 +23,10 @@
   })
 </script>
 
+<svelte:head>
+  <title>{$headTitle}</title>
+</svelte:head>
+
 <Header/>
 <main>
   {@render children?.()}