[Query Copilot] Maintain Query Copilot state when switching tabs (#1559)

* Sample implementation for saving states

* Maintaining Query Copilot state

* Fixing failed PR checks

* Additional changes based on checks

* snapshots updated

* Changes based on merging previous PR

* test mock changed

* Fixing minor bug for close button

* Destruct of queryCopilotState

* passing only function in Tabs component

* Maintaining copilot state with zustand store

* additional test changes

* test snapshot updated

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Co-authored-by: Predrag Klepic <v-prklepic@microsoft.com>

src/Explorer/QueryCopilot/QueryCopilotTab.test.tsx

@@ -5,9 +5,7 @@ import { QueryCopilotTab } from "./QueryCopilotTab";
 
 describe("Query copilot tab snapshot test", () => {
   it("should render with initial input", () => {
-    const wrapper = shallow(
-      <QueryCopilotTab initialInput="Write a query to return all records in this table" explorer={new Explorer()} />
-    );
+    const wrapper = shallow(<QueryCopilotTab explorer={new Explorer()} />);
     expect(wrapper).toMatchSnapshot();
   });
 });