Revert "Migrate main chat to FlashList with inverted flag"

cspell.json

@@ -649,7 +649,6 @@
         "RPID",
         "RRGGBB",
         "rstrip",
-        "recyclerview",
         "RTER",
         "s3uqn2oe4m85tufi6mqflbfbuajrm2i3",
         "SAASPASS",

jest/setup.ts

@@ -262,7 +262,7 @@ jest.mock('../src/components/Icon/IllustrationLoader.ts', () => ({
 }));
 
 jest.mock(
-    '@components/FlatList/RenderTaskQueue',
+    '@components/FlatList/InvertedFlatList/RenderTaskQueue',
     () =>
         class SyncRenderTaskQueue {
             private handler: (info: unknown) => void = () => {};

jest/setupAfterEnv.ts

@@ -4,35 +4,6 @@ import ONYXKEYS from '@src/ONYXKEYS';
 
 jest.useRealTimers();
 
-// This mock must live in setupAfterEnv (not setupFiles) because @shopify/flash-list/jestSetup,
-// imported in setup.ts, registers its own measureLayout mock. Placing ours here ensures it
-// runs after FlashList's setup and takes precedence.
-jest.mock(
-    '@shopify/flash-list/dist/recyclerview/utils/measureLayout',
-    () =>
-        ({
-            ...jest.requireActual('@shopify/flash-list/dist/recyclerview/utils/measureLayout'),
-            measureParentSize: jest.fn().mockImplementation(() => ({
-                x: 0,
-                y: 0,
-                width: 300,
-                height: 400,
-            })),
-            measureFirstChildLayout: jest.fn().mockImplementation(() => ({
-                x: 0,
-                y: 0,
-                width: 300,
-                height: 400,
-            })),
-            measureItemLayout: jest.fn().mockImplementation(() => ({
-                x: 0,
-                y: 0,
-                width: 300,
-                height: 75,
-            })),
-        }) as Record<string, unknown>,
-);
-
 // Auto-initialize Onyx for tests.
 // Tests that already call Onyx.init() in their own beforeAll will safely re-configure Onyx —
 // the second init() just re-runs initStoreValues and re-resolves the already-resolved deferred task.

patches/@shopify/flash-list/@shopify+flash-list+2.3.0+001+fix-horizontal-height-normalization.patch

@@ -1,5 +1,5 @@
 diff --git a/node_modules/@shopify/flash-list/dist/recyclerview/layout-managers/LinearLayoutManager.js b/node_modules/@shopify/flash-list/dist/recyclerview/layout-managers/LinearLayoutManager.js
-index fb40ded..12375d9 100644
+index fb40ded..ea4eba2 100644
 --- a/node_modules/@shopify/flash-list/dist/recyclerview/layout-managers/LinearLayoutManager.js
 +++ b/node_modules/@shopify/flash-list/dist/recyclerview/layout-managers/LinearLayoutManager.js
 @@ -92,6 +92,17 @@ export class RVLinearLayoutManagerImpl extends RVLayoutManager {