fix: use system as defaultTheme (#60)

* fix: use system as defaultTheme

* chore: auto-fix linting and formatting issues

* fix: AnimatedMan position on login page

* fix: login form overflow on mobile

* fix: theme selected value display overflow

* fix: dropdown menu username overflow

---------

Co-authored-by: hamster1963 <hamster1963@users.noreply.github.com>

src/routes/login.tsx

@@ -42,7 +42,7 @@ function Login() {
     const { t } = useTranslation()
 
     return (
-        <div className="mt-28 max-w-sm m-auto">
+        <div className="mt-28 sm:max-w-sm m-auto max-w-fit">
             <Form {...form}>
                 <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-8">
                     <FormField