Restore autocomplete in some cases

app/soapbox/features/auth_login/components/login_form.tsx

@@ -37,7 +37,6 @@ const LoginForm: React.FC<ILoginForm> = ({ isLoading, handleSubmit }) => {
               placeholder={intl.formatMessage(messages.username)}
               type='text'
               name='username'
-              autoComplete='off'
               autoCorrect='off'
               autoCapitalize='off'
               required

app/soapbox/features/external_login/components/external-login-form.tsx

@@ -51,7 +51,6 @@ const ExternalLoginForm: React.FC = () => {
           type='text'
           name='host'
           onChange={handleHostChange}
-          autoComplete='off'
           autoCorrect='off'
           autoCapitalize='off'
           required

app/soapbox/features/public_layout/components/header.tsx

@@ -132,7 +132,6 @@ const Header = () => {
                 type='text'
                 placeholder={intl.formatMessage(messages.username)}
                 className='max-w-[200px]'
-                autoComplete='off'
                 autoCorrect='off'
                 autoCapitalize='off'
               />