almost finish refactoring PersistentCredential trait

src/views/CreatePassphrase.svelte

@@ -0,0 +1,21 @@
+<script>
+    import EnterPassphrase from './passphrase/EnterPassphrase.svelte';
+</script>
+
+
+<div class="flex flex-col h-screen max-w-lg m-auto justify-center">
+    <div class="space-y-8">
+        <h1 class="text-2xl font-bold text-center">Welcome to Creddy!</h1>
+
+        <div class="space-y-4">
+            <p> Create a passphrase to get started.</p>
+
+            <p>Please note that if you forget your passphrase, there is no way to recover 
+            your stored credentials. You will have to start over with a new passphrase.</p>
+        </div>
+
+        <div class="max-w-sm mx-auto">
+            <EnterPassphrase />
+        </div>
+    </div>
+</div>