fix: Android ignores centering and inset-stretch on containers with absolute children

[SRWieZ]

What's wrong

Two Android layout bugs, visible on any screen that layers absolute children over content. iOS renders the same Blade correctly.

1. absolute children with two opposing insets don't stretch. In CSS (and in the iOS renderer), inset-x-0 stretches a child to full width and inset-0 makes it fill the container. Android only anchored the child to a corner — so absolute inset-x-0 justify-center collapsed to content size and hugged the left edge, and a childless absolute inset-0 overlay (the classic scrim) measured zero and was invisible.
2. items-center justify-center stops working once the container has an absolute child. The flow content gets pinned to the top-left corner.

Minimum repro (generic — paste into any screen):

<native:column class="w-full h-[170] relative items-center justify-center bg-white rounded-2xl">
    <native:column class="items-center gap-1">
        <native:text font="bold" class="font-bold text-xl">Centered content</native:text>
        <native:text class="text-sm text-zinc-500">items-center justify-center</native:text>
    </native:column>

    {{-- should stretch full width and center A/B --}}
    <native:row class="absolute top-[10] inset-x-0 justify-center gap-3">
        <native:column class="w-8 h-8 rounded-full bg-emerald-500 items-center justify-center"><native:text font="bold" class="font-bold text-white text-xs">A</native:text></native:column>
        <native:column class="w-8 h-8 rounded-full bg-rose-500 items-center justify-center"><native:text font="bold" class="font-bold text-white text-xs">B</native:text></native:column>
    </native:row>

    {{-- should tint the whole card --}}
    <native:rect class="absolute inset-0 bg-blue-500/15" />

    {{-- single-corner anchor: already worked, unchanged --}}
    <native:column class="absolute bottom-[10] right-[10] w-6 h-6 rounded-full bg-amber-400" />
</native:column>

What this does

• Absolute children are measured and placed by a small custom Layout against the container's real bounds: one edge set anchors to it, both opposing edges stretch the child between them (stretched axes measure tight, so the child's own justify-* works inside), negatives still overhang. Mirrors iOS placeAbsolute one-for-one.
• The flow content takes its placement from the container's own justify/align.
• Absolute children no longer influence the container's size (they never did on iOS).
• No iOS or PHP changes.

Before / after (Android emulator, API 36, same Blade)

iOS reference (unchanged, both fixes match it):