refactor: use plain input for totp input to fix autofill issues (#790)

* fix(ui): allow pw manager extensions to autofill totp

* chore: small ui fixes

* fix: prevent double totp submissions

---------

Co-authored-by: Scott McKendry <me@scottmckendry.tech>

frontend/src/pages/totp-page.tsx

@@ -74,7 +74,7 @@ export const TotpPage = () => {
         <CardTitle className="text-xl">{t("totpTitle")}</CardTitle>
         <CardDescription>{t("totpSubtitle")}</CardDescription>
       </CardHeader>
-      <CardContent className="flex flex-col items-center">
+      <CardContent>
         <TotpForm
           formId={formId}
           onSubmit={(values) => totpMutation.mutate(values)}