Fix standalone package build for unity plugins

Summary: Fixed error on building standalone packages for "unity" apps. The error was because "immer" imports were not transformed to use "immer" from Flipper bundle.

Reviewed By: passy

Differential Revision: D22357571

fbshipit-source-id: 590321f36208c9ed02d56d2c0c085c7cd1878018

desktop/app/src/dispatcher/plugins.tsx

@@ -35,6 +35,7 @@ import {addNotification} from '../reducers/notifications';
 import styled from '@emotion/styled';
 import {tryCatchReportPluginFailures, reportUsage} from '../utils/metrics';
 import * as FlipperPluginSDK from 'flipper-plugin';
+import Immer from 'immer';
 
 // eslint-disable-next-line import/no-unresolved
 import getPluginIndex from '../utils/getDefaultPluginsIndex';
@@ -52,6 +53,7 @@ export default (store: Store, logger: Logger) => {
   globalObject.Flipper = Flipper;
   globalObject.adbkit = adbkit;
   globalObject.FlipperPlugin = FlipperPluginSDK;
+  globalObject.Immer = Immer;
 
   const gatekeepedPlugins: Array<PluginDetails> = [];
   const disabledPlugins: Array<PluginDetails> = [];

desktop/babel-transformer/src/replace-flipper-requires.ts

@@ -21,6 +21,7 @@ const requireReplacements: any = {
   react: 'global.React',
   'react-dom': 'global.ReactDOM',
   adbkit: 'global.adbkit',
+  immer: 'global.Immer',
 };
 
 export function tryReplaceFlipperRequire(path: NodePath<CallExpression>) {