fix: inline FlashListProps to remove @shopify/flash-list type dependency (#2620)(by @YevheniiKotyrlo)

The published BottomSheetFlashList.d.ts unconditionally imports from
@shopify/flash-list, but flash-list is not declared in any dependency
field. Consumers who don't install flash-list get TS2307 because
TypeScript strips @ts-ignore from emitted .d.ts files (by design,
confirmed in TypeScript #38628).

Replace the external type import with a minimal local interface
extending FlatListProps<T> from react-native. The runtime try/catch
require('@shopify/flash-list') is unchanged -- only types are affected.

Fixes #2390

Author: YevheniiKotyrlo

src/components/bottomSheetScrollable/BottomSheetFlashList.tsx

@@ -1,14 +1,21 @@
-// @ts-expect-error
-import type { FlashListProps } from '@shopify/flash-list';
 import React, { forwardRef, memo, type Ref, useMemo } from 'react';
-import type { ScrollViewProps } from 'react-native';
+import type { FlatListProps, ScrollViewProps } from 'react-native';
 import type { AnimatedProps } from 'react-native-reanimated';
 import BottomSheetScrollView from './BottomSheetScrollView';
 import type {
   BottomSheetScrollableProps,
   BottomSheetScrollViewMethods,
 } from './types';
 
+/**
+ * Minimal subset of FlashListProps needed for BottomSheetFlashList.
+ * Defined locally to avoid requiring @shopify/flash-list as a dependency,
+ * since the runtime import is optional (try/catch require).
+ */
+interface FlashListProps<T> extends FlatListProps<T> {
+  estimatedItemSize?: number;
+}
+
 let FlashList: {
   FlashList: React.FC;
 };