Migration wizard Refresh 11th Feb 2021 (#14257)

* Adding summary page,
Storing ongoing migrations,
localizing some string,
made changes to how dropdowns work
updated database backup page

* Moved classes into different files
Fixed a lot of typos
Fixed some UI margins

extensions/sql-migration/src/constants/notebookPathHelper.ts

@@ -0,0 +1,38 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import * as loc from '../models/strings';
+
+export class NotebookPathHelper {
+	private static context: vscode.ExtensionContext;
+
+	public static inlineMigrationNotebook: MigrationNotebookInfo;
+	public static sqlAssessmentNotebook: MigrationNotebookInfo;
+
+	public static setExtensionContext(context: vscode.ExtensionContext) {
+		NotebookPathHelper.context = context;
+		NotebookPathHelper.inlineMigrationNotebook = {
+			label: loc.NOTEBOOK_INLINE_MIGRATION_TITLE,
+			notebookPath: NotebookPathHelper.context.asAbsolutePath('notebooks/Inline_Migration_Notebook.ipynb')
+		};
+		NotebookPathHelper.sqlAssessmentNotebook = {
+			label: loc.NOTEBOOK_SQL_MIGRATION_ASSESSMENT_TITLE,
+			notebookPath: NotebookPathHelper.context.asAbsolutePath('notebooks/SQL_Assessment_Notebook.ipynb')
+		};
+	}
+
+	public static getAllMigrationNotebooks(): MigrationNotebookInfo[] {
+		return [
+			NotebookPathHelper.inlineMigrationNotebook,
+			NotebookPathHelper.sqlAssessmentNotebook
+		];
+	}
+}
+
+export interface MigrationNotebookInfo {
+	label: string;
+	notebookPath: string
+}