Resolve suppressed `PROPERTY_WONT_BE_SERIALIZED` warning for `RefundByItemsViewState`

[ParaskP7]

This not a bug, but can be potentially leading to a bug. 🤔

As part of #6865 and this 7f6ec8b commit, the below property and its warning got suppressed with PROPERTY_WONT_BE_SERIALIZED:

val isRefundNoticeVisible = !refundNotice.isNullOrEmpty()

The warning occurs because this property would not be serialized into a Parcel. One would need to add @IgnoredOnParcel annotation to remove the warning or apply another proper solution to it.

[peril-woocommerce]

	Fails
🚫	Please add a feature label to this issue. e.g. 'feature: stats'

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