Add IR Migration configuration Validation to SQL Migration extension (#21386)

* re-factor and consolidate wizard pages

* validation WIP 11/10

* validate ir dialog

* navigation fixes

* bump version to 1.2.0

* add resource strings and fix navigatin issue

* map validation state to resource string clean up

* address review comments

* fix typos, address review comments

* address review feedback, readability

* fix res string, validation check, col width

* bug fixes, nav, sqldb migration

* fix nav/refresh/visibility issues

* fix nav issues, cancel pending validation items

* update error text / position

* fix localization bug

extensions/sql-migration/src/dashboard/DashboardStatusBar.ts

@@ -104,7 +104,9 @@ export class DashboardStatusBar implements vscode.Disposable {
 			dialog.content = [tab];
 			dialog.okButton.label = loc.ERROR_DIALOG_CLEAR_BUTTON_LABEL;
 			dialog.okButton.focused = true;
+			dialog.okButton.position = 'left';
 			dialog.cancelButton.label = loc.CLOSE;
+			dialog.cancelButton.position = 'left';
 			this._context.subscriptions.push(
 				dialog.onClosed(async e => {
 					if (e === 'ok') {

extensions/sql-migration/src/dashboard/tabBase.ts

@@ -221,6 +221,7 @@ export abstract class TabBase<T> implements azdata.Tab, vscode.Disposable {
 		dialog.okButton.hidden = true;
 		dialog.cancelButton.focused = true;
 		dialog.cancelButton.label = loc.CLOSE;
+		dialog.cancelButton.position = 'left';
 
 		azdata.window.openDialog(dialog);
 	}