Merge "Cache QSTileViewModelAdapter state on addCallback" into main

    override fun addCallback(callback: QSTile.Callback?) {

        callback ?: return

        callbacks.add(callback)

        state?.let(callback::onStateChanged)

        state.copyTo(cachedState)

        state.let(callback::onStateChanged)

    }

    override fun removeCallback(callback: QSTile.Callback?) {

        qsTileViewModel.destroy()

    }

    override fun getState(): QSTile.State =

    override fun getState(): QSTile.AdapterState =

        qsTileViewModel.currentState?.let { mapState(context, it, qsTileViewModel.config) }

            ?: QSTile.State()

            ?: QSTile.AdapterState()

    override fun getInstanceId(): InstanceId = qsTileViewModel.config.instanceId

            context: Context,

            viewModelState: QSTileState,

            config: QSTileConfig,

        ): QSTile.State =

        ): QSTile.AdapterState =

            // we have to use QSTile.BooleanState to support different side icons

            // which are bound to instanceof QSTile.BooleanState in QSTileView.

            QSTile.AdapterState().apply {