Modifying the migration extension to use its own service. (#21781)

* Adding migration service to sql migrations

* enabling auto flush log

* Adding support for env variable

* Adding TDE Migration service

* code cleanup

* updating service downloader

* Removing custom output channel

* remove unnecessary await

* Updated service version to get latest code

* Consolidate TDE into migration service

* Sync to latest main

* Update sql-migration package version

* Fix merge conflict error

* Fixing all merge conflicts

* Fixing stuff

* removing extra whitespace

* Cleaning up

---------

Co-authored-by: Akshay Mata <akma@microsoft.com>

extensions/sql-migration/src/main.ts

@@ -5,10 +5,23 @@
 
 import * as vscode from 'vscode';
 import { DashboardWidget } from './dashboard/sqlServerDashboard';
+import * as constants from './constants/strings';
+import { ServiceClient } from './service/serviceClient';
+import { migrationServiceProvider } from './service/provider';
 import { TelemetryReporter } from './telemetry';
 
 let widget: DashboardWidget;
 export async function activate(context: vscode.ExtensionContext): Promise<DashboardWidget> {
+	if (!migrationServiceProvider) {
+		await vscode.window.showErrorMessage(constants.serviceProviderInitializationError);
+	}
+	// asynchronously starting the service
+	const outputChannel = vscode.window.createOutputChannel(constants.serviceName);
+	const serviceClient = new ServiceClient(outputChannel);
+	serviceClient.startService(context).catch((e) => {
+		console.error(e);
+	});
+
 	widget = new DashboardWidget(context);
 	await widget.register();
 	context.subscriptions.push(TelemetryReporter);