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/Platform/Hosted/extractFeatures.ts

@@ -38,6 +38,7 @@ export type Features = {
   readonly copilotChatFixedMonacoEditorHeight: boolean;
   readonly enablePriorityBasedExecution: boolean;
   readonly disableConnectionStringLogin: boolean;
+  readonly restoreTabs: boolean;
 
   // can be set via both flight and feature flag
   autoscaleDefault: boolean;
@@ -108,6 +109,7 @@ export function extractFeatures(given = new URLSearchParams(window.location.sear
     copilotChatFixedMonacoEditorHeight: "true" === get("copilotchatfixedmonacoeditorheight"),
     enablePriorityBasedExecution: "true" === get("enableprioritybasedexecution"),
     disableConnectionStringLogin: "true" === get("disableconnectionstringlogin"),
+    restoreTabs: "true" === get("restoretabs"),
   };
 }