fix(rtl): horizontal list renders blank in a native-RTL app

[Mohamed-kassim]

Horizontal lists show up completely blank in a native‑RTL app (I18nManager.isRTL === true, e.g. an Arabic or Urdu locale). Nothing paints, though onViewableItemsChanged keeps firing, so the items are there, just positioned offscreen. LTR apps (and LTR apps using the rtl prop) work fine.

Why it happens: the library does its own RTL, it keeps logical (LTR) offsets and mirrors item positions in JS. That only works if the scroll container itself stays LTR, which is why it already forces direction: "ltr" on web (in Container.tsx). On native that step is missing, so when the app is RTL the ScrollView flips as well, the JS mirror and the native flip stack on top of each other and the rendered items end up offscreen.

The fix: just do on native what web already does — keep the scroll container LTR for horizontal RTL lists, so the JS mirror is the only flip:

- style={autoOtherAxisStyle ? [autoOtherAxisStyle, style] : style}
+ style={[
+     isHorizontalRTL(ctx.state) && Platform.OS !== "web" ? { direction: "ltr" } : null,
+     autoOtherAxisStyle ? [autoOtherAxisStyle, style] : style,
+ ]}

LTR and vertical lists are untouched.

Repro: https://github.com/Mohamed-kassim/legend-list-rtl-repro/tree/case/native-rtl-blank — forces native RTL and renders a horizontal rtl list of 604 pages → blank on Android (happens in every config, even at initialScrollIndex=0).

Tested on a real Android device and that repro on 3.2.0: blank before, renders after; scrollToIndex and paging both work.

One heads‑up: direction: "ltr" inherits down to item content. In practice that's fine, items are positioned with physical left, and RN Text auto‑detects its own direction , but I'm happy to also reset direction: "rtl" on the content wrapper if you'd rather keep it fully contained.

Fixes #477

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[Radwan-Albahrani]

i was looking into this. it doesnt work on ios.