Added missing exports

ref #106

src/components/auth/PasswordStrength.svelte

@@ -1,6 +1,9 @@
 <script>
     import { getLocaleFromNavigator, _ } from "svelte-i18n";
     import { passwordStrength } from "check-password-strength";
+    export let password_change;
+    export let password_confirm;
+    
     $: strength = passwordStrength(password_change);
     $: passwords_match =
         !password_confirm || password_confirm === password_change;