feat: handle logout events in nostr-login

This commit introduces handling for logout events in nostr-login across various pages. When a user logs out, the current public key and other related information are reset to null. The nostrLogin.js file has also been updated to dispatch a 'nostrLoggedOut' event when this occurs. Additionally, the nostr-login package has been added to the project dependencies.

resources/views/pages/association/election/admin/[Election:year].blade.php

@@ -59,6 +59,13 @@ mount(fn()
     $this->loadBoardVotes(),
 ]);
 
+on([
+    'nostrLoggedOut' => function () {
+        $this->currentPubkey = null;
+        $this->currentPleb = null;
+    },
+]);
+
 on([
     'nostrLoggedIn' => fn($pubkey)
         => [