fix: provide platform when emitting webpack_compilation_ready event

Providing platform on webpack_compilation_ready event will give us the ability to transfer android specific hmr files only on android devices and iOS specific hmr files only on iOS devices

Author: Fatme

lib/controllers/prepare-controller.ts

@@ -102,7 +102,7 @@ export class PrepareController extends EventEmitter {
 	private async startJSWatcherWithPrepare(platformData: IPlatformData, projectData: IProjectData, prepareData: IPrepareData): Promise<void> {
 		if (!this.watchersData[projectData.projectDir][platformData.platformNameLowerCase].webpackCompilerProcess) {
 			this.$webpackCompilerService.on(WEBPACK_COMPILATION_COMPLETE, data => {
-				this.emitPrepareEvent({ ...data, hasNativeChanges: false, platform: platformData.platformNameLowerCase });
+				this.emitPrepareEvent({ ...data, hasNativeChanges: false });
 			});
 
 			const childProcess = await this.$webpackCompilerService.compileWithWatch(platformData, projectData, prepareData);

lib/services/webpack/webpack-compiler-service.ts

@@ -60,7 +60,8 @@ export class WebpackCompilerService extends EventEmitter implements IWebpackComp
 						hmrData: {
 							hash: result.hash,
 							fallbackFiles
-						}
+						},
+						platform: platformData.platformNameLowerCase
 					};
 
 					if (data.files.length) {