Fix/animated lists types (#36292)

Summary:
I was working on `Animated.FlatList` and found some types missing as below

![Screen Shot 2023-02-25 at 4 32 43 PM](https://user-images.githubusercontent.com/64301935/221345457-74252131-5207-4e17-ad96-92221a915305.png)

also `Animated.SectionList`

![Screen Shot 2023-02-25 at 4 31 34 PM](https://user-images.githubusercontent.com/64301935/221345679-07ba862b-708e-400e-ac14-7d2156fcc1e8.png)

So I refactored type definition for `Animated.FlatList` and `Animated.SectionList` using `abstract class`.

## Changelog

[GENERAL] [FIXED] - add missing FlatList types for Animated FlatList
[GENERAL] [FIXED] - add missing SectionList types for Animated SectionList

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Pull Request resolved: #36292

Test Plan: Ran `yarn test-typescript` and `yarn test-typescript-offline` with no errors.

Reviewed By: lunaleaps

Differential Revision: D43673884

Pulled By: NickGerleman

fbshipit-source-id: 7ccab5997fa2f22226fb0e106672cee98e568ba4

Libraries/Animated/Animated.d.ts

@@ -11,8 +11,12 @@ import type * as React from 'react';
 import {ScrollView} from '../Components/ScrollView/ScrollView';
 import {View} from '../Components/View/View';
 import {Image} from '../Image/Image';
-import {FlatListProps} from '../Lists/FlatList';
-import {DefaultSectionT, SectionListProps} from '../Lists/SectionList';
+import {FlatListComponent, FlatListProps} from '../Lists/FlatList';
+import {
+  DefaultSectionT,
+  SectionListComponent,
+  SectionListProps,
+} from '../Lists/SectionList';
 import {ColorValue} from '../StyleSheet/StyleSheet';
 import {Text} from '../Text/Text';
 import {NativeSyntheticEvent} from '../Types/CoreEventTypes';
@@ -598,13 +602,18 @@ export namespace Animated {
   /**
    * FlatList and SectionList infer generic Type defined under their `data` and `section` props.
    */
-  export class FlatList<ItemT = any> extends React.Component<
+
+  export class FlatList<ItemT = any> extends FlatListComponent<
+    ItemT,
     AnimatedProps<FlatListProps<ItemT>>
   > {}
+
   export class SectionList<
     ItemT = any,
     SectionT = DefaultSectionT,
-  > extends React.Component<AnimatedProps<SectionListProps<ItemT, SectionT>>> {}
+  > extends SectionListComponent<
+    AnimatedProps<SectionListProps<ItemT, SectionT>>
+  > {}
 }
 
 // We need to alias these views so we can reference them in the Animated

Libraries/Lists/FlatList.d.ts

@@ -166,9 +166,10 @@ export interface FlatListProps<ItemT> extends VirtualizedListProps<ItemT> {
   fadingEdgeLength?: number | undefined;
 }
 
-export class FlatList<ItemT = any> extends React.Component<
-  FlatListProps<ItemT>
-> {
+export abstract class FlatListComponent<
+  ItemT,
+  Props,
+> extends React.Component<Props> {
   /**
    * Scrolls to the end of the content. May be janky without `getItemLayout` prop.
    */
@@ -236,3 +237,8 @@ export class FlatList<ItemT = any> extends React.Component<
   // TODO: use `unknown` instead of `any` for Typescript >= 3.0
   setNativeProps: (props: {[key: string]: any}) => void;
 }
+
+export class FlatList<ItemT = any> extends FlatListComponent<
+  ItemT,
+  FlatListProps<ItemT>
+> {}

Libraries/Lists/SectionList.d.ts

@@ -210,10 +210,9 @@ export interface SectionListScrollParams {
   viewPosition?: number | undefined;
 }
 
-export class SectionList<
-  ItemT = any,
-  SectionT = DefaultSectionT,
-> extends React.Component<SectionListProps<ItemT, SectionT>> {
+export abstract class SectionListComponent<
+  Props,
+> extends React.Component<Props> {
   /**
    * Scrolls to the item at the specified sectionIndex and itemIndex (within the section)
    * positioned in the viewable area such that viewPosition 0 places it at the top
@@ -246,6 +245,11 @@ export class SectionList<
   getScrollableNode(): NodeHandle | undefined;
 }
 
+export class SectionList<
+  ItemT = any,
+  SectionT = DefaultSectionT,
+> extends SectionListComponent<SectionListProps<ItemT, SectionT>> {}
+
 /* This definition is deprecated because it extends the wrong base type */
 export interface SectionListStatic<ItemT, SectionT = DefaultSectionT>
   extends React.ComponentClass<SectionListProps<ItemT, SectionT>> {