Restore open collection tabs: Query, Documents, Settings (#2004)

* Persist query multiple query texts

* Save multiple query tab histories

* Save and restore states for QueryTab and DocumentsTab for SQL and Mongo

* Enable Collection Scale/Settings restore

* Persist documents tab current filter

* Fix DocumentsTab conflict resolve mistake

* Remove unused variable

* Fix e2e test

* Fix e2e localStorage reference

* Try clearing local storage via playwright page

* Clear local storage after opening page

* Move restore flag behind feature flag. Whitelist restorable tabs in for Fabric. Restore e2e tests.

* Fix typo

* Fix: avoid setting undefined for preferredSize for the <Allotment.Pane>

* Add comments

* Move restore tabs after knockout configure step from Explorer constructor (which could be called multiple times)

src/Explorer/Tabs/TabsBase.ts

@@ -1,3 +1,4 @@
+import { OpenTab } from "Contracts/ActionContracts";
 import { KeyboardActionGroup, clearKeyboardActionGroup } from "KeyboardShortcuts";
 import * as ko from "knockout";
 import * as Constants from "../../Common/Constants";
@@ -30,6 +31,8 @@ export default class TabsBase extends WaitsForTemplateViewModel {
   protected _theme: string;
   public onLoadStartKey: number;
 
+  protected persistedState: OpenTab | undefined = undefined; // Used to store state of tab for persistence
+
   constructor(options: ViewModels.TabOptions) {
     super();
     this.index = options.index;
@@ -55,6 +58,10 @@ export default class TabsBase extends WaitsForTemplateViewModel {
     };
   }
 
+  // Called by useTabs to persist
+  public getPersistedState = (): OpenTab | null => this.persistedState;
+  public triggerPersistState: () => void = undefined;
+
   public onCloseTabButtonClick(): void {
     useTabs.getState().closeTab(this);
     TelemetryProcessor.trace(Action.Tab, ActionModifiers.Close, {