Adding database specific settings, cancel migration and other dark UI fixes (#14626)

* Made dashboard dark ui compat

* foundations for sql vm

* WIP

* Added cancel migration
Added refresh migraiton table
Added multi db config

* disabling cancel migration button if the migration is not in progress.

* Addressing some PR based coments
- Removing (s) from loc strings
- Adding return type to cancel migration
- removing _ from public vars
- localizing strings
- Adding name to dialogs for telemetry

* Adding todo comment for offline mode

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

@@ -132,7 +132,9 @@ export class IntergrationRuntimePage extends MigrationWizardPage {
 					text: ''
 				};
 				this.migrationStateModel._migrationController = this.migrationStateModel.getMigrationController(value.index);
-				await this.loadControllerStatus();
+				if (value !== constants.MIGRATION_CONTROLLER_NOT_FOUND_ERROR) {
+					await this.loadControllerStatus();
+				}
 			}
 		});
 
@@ -169,7 +171,6 @@ export class IntergrationRuntimePage extends MigrationWizardPage {
 
 	private async loadControllerStatus(): Promise<void> {
 		this._statusLoadingComponent.loading = true;
-
 		try {
 			this._migrationDetailsContainer.clearItems();