ADS: Make select all tables by default instead of having to click edit and do select all (#21698)

* table are selected as default

* refactor

* fix save and close bug

extensions/sql-migration/src/wizard/targetSelectionPage.ts

@@ -76,6 +76,11 @@ export class TargetSelectionPage extends MigrationWizardPage {
 				this._disposables.forEach(
 					d => { try { d.dispose(); } catch { } });
 			}));
+
+		if (this.migrationStateModel.resumeAssessment) {
+			await this.populateAzureAccountsDropdown();
+		}
+
 		await this._view.initializeModel(form);
 	}