Android: LoadStateAdapter not centered inside recyclerview gridlayout

My current problem is, that my LoadStateAdapter which shows the loading and error state, is not centered inside my recyclerview, which has a gridlayout as a layoutmanager. I didn't find anything about this at the official android developer website, so I am asking here: How can I center my LoadStateAdapter inside my Recyclerview?

Current

Fragment

@AndroidEntryPoint
class ShopFragment : Fragment(R.layout.fragment_shop), ShopAdapter.OnItemClickListener {
    private val shopViewModel: ShopViewModel by viewModels()
    private val shopBinding: FragmentShopBinding by viewBinding()
    @Inject lateinit var shopListAdapter: ShopAdapter

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        bindObjects()
    }

    private fun bindObjects() {
        shopBinding.adapter = shopListAdapter.withLoadStateFooter(ShopLoadAdapter(shopListAdapter::retry))
        shopListAdapter.clickHandler(this)
    }

    override fun onDestroyView() {
        requireView().findViewById<RecyclerView>(R.id.rv_shop).adapter = null
        super.onDestroyView()
    }
}

Adapter

@FragmentScoped
class ShopLoadAdapter(private val retry: () -> Unit): LoadStateAdapter<ShopLoadAdapter.ShopLoadStateViewHolder>() {

    inner class ShopLoadStateViewHolder(private val binding: ShopLoadStateFooterBinding) : RecyclerView.ViewHolder(binding.root) {
        fun bind(loadState: LoadState) {
            with(binding) {
                shopLoadPb.isVisible = loadState is LoadState.Loading
                shopLoadMbtnRetry.isVisible = loadState is LoadState.Error
                shopLoadTvError.isVisible = loadState is LoadState.Error
            }
        }
    }

    override fun onBindViewHolder(holder: ShopLoadStateViewHolder, loadState: LoadState) = holder.bind(loadState)

    override fun onCreateViewHolder(parent: ViewGroup, loadState: LoadState): ShopLoadStateViewHolder {
        val layoutInflater = LayoutInflater.from(parent.context)
        val binding = ShopLoadStateFooterBinding.inflate(layoutInflater, parent, false)
        return ShopLoadStateViewHolder(binding).also {
            binding.shopLoadMbtnRetry.setOnClickListener { retry.invoke() }
        }
    }
}

Layout.xml

<androidx.recyclerview.widget.RecyclerView
    android:id="@+id/rv_shop"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginEnd="8dp"
    app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
    app:spanCount="2"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/headline"
    app:recyclerview_adapter="@{adapter}"
    tools:listitem="@layout/shop_list_item"/>

from Android: LoadStateAdapter not centered inside recyclerview gridlayout