[v10.0.x] Dashboards: Remove Explore option from panel menu when panel's datasource uid is "-- Dashboard --" (#69173)

Dashboards: Remove Explore option from panel menu when panel's datasource uid is "-- Dashboard --" (#69017)

* Remove Explore option from panel menu when panel's datasource uid is "-- Dashboard --"

* Use the constant SHARED_DASHBOARD_QUERY

(cherry picked from commit 3fd04edd81)

Co-authored-by: Haris Rozajac <58232930+harisrozajac@users.noreply.github.com>

public/app/features/dashboard/utils/getPanelMenu.ts

@@ -25,6 +25,7 @@ import {
 } from 'app/features/dashboard/utils/panel';
 import { InspectTab } from 'app/features/inspector/types';
 import { isPanelModelLibraryPanel } from 'app/features/library-panels/guard';
+import { SHARED_DASHBOARD_QUERY } from 'app/plugins/datasource/dashboard';
 import { store } from 'app/store/store';
 
 import { navigateToExplore } from '../../explore/state/main';
@@ -141,7 +142,11 @@ export function getPanelMenu(
     shortcut: 'p s',
   });
 
-  if (contextSrv.hasAccessToExplore() && !(panel.plugin && panel.plugin.meta.skipDataQuery)) {
+  if (
+    contextSrv.hasAccessToExplore() &&
+    !(panel.plugin && panel.plugin.meta.skipDataQuery) &&
+    panel.datasource?.uid !== SHARED_DASHBOARD_QUERY
+  ) {
     menu.push({
       text: t('panel.header-menu.explore', `Explore`),
       iconClassName: 'compass',