Chore: Upgrade to react 18 (#64428)

* update react 18 related deps

* fix some types

* make sure we're on react-router-dom >= 5.3.3

* Use new root API

* Remove StrictMode for now - react 18 double rendering causes issues

* fix + ignore some @grafana/ui types

* fix some more types

* use renderHook from @testing-library/react in almost all cases

* fix storybook types

* rewrite useDashboardSave to not use useEffect

* make props optional

* only render if props are provided

* add correct type for useCallback

* make resourcepicker tests more robust

* fix ModalManager rendering

* fix some more unit tests

* store the click coordinates in a ref as setState is NOT synchronous

* fix remaining e2e tests

* rewrite dashboardpage tests to avoid act warnings

* undo lint ignores

* fix ExpanderCell types

* set SymbolCell type correctly

* fix QueryAndExpressionsStep

* looks like the types were actually wrong instead :D

* undo this for now...

* remove spinner waits

* more robust tests

* rewrite errorboundary test to not explicitly count the number of renders

* make urlParam expect async

* increase timeout in waitFor

* revert ExplorePage test changes

* Update public/app/features/dashboard/containers/DashboardPage.test.tsx

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

* Update public/app/features/dashboard/containers/PublicDashboardPage.test.tsx

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

* Update public/app/features/dashboard/containers/PublicDashboardPage.test.tsx

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

* Update public/app/features/dashboard/containers/PublicDashboardPage.test.tsx

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

* skip fakeTimer test, ignore table types for now + other review comments

* update package peerDeps

* small tweak to resourcepicker test

* update lockfile...

* increase timeout in sharepublicdashboard tests

* ensure ExplorePaneContainer passes correct queries to initializeExplore

* fix LokiContextUI test

* fix unit tests

* make importDashboard flow more consistent

* wait for dashboard name before continuing

* more test fixes

* readd dashboard name to variable e2e tests

* wait for switches to be enabled before clicking

* fix modal rendering

* don't use @testing-library/dom directly

* quick fix for rendering of panels in firefox

* make PromQueryField test more robust

* don't wait for chartData - in react 18 this can happen before the wait code even gets executed

---------

Co-authored-by: kay delaney <kay@grafana.com>
Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

public/app/app.ts

@@ -11,7 +11,7 @@ import 'app/features/all';
 
 import _ from 'lodash'; // eslint-disable-line lodash/import-scope
 import React from 'react';
-import ReactDOM from 'react-dom';
+import { createRoot } from 'react-dom/client';
 
 import {
   locationUtil,
@@ -209,11 +209,11 @@ export class GrafanaApp {
         config,
       };
 
-      ReactDOM.render(
+      const root = createRoot(document.getElementById('reactRoot')!);
+      root.render(
         React.createElement(AppWrapper, {
           app: this,
-        }),
-        document.getElementById('reactRoot')
+        })
       );
     } catch (error) {
       console.error('Failed to start Grafana', error);