Fix "... was not wrapped in `act`" warnings in tests

[canova]

Now that don't have a lot of findDOMNode warnings while running tests, it's a lot easier to spot the rest of the warnings 😄

I see this while running the tests locally. It would be good to fix it:

  ● Console

    console.error
      Warning: An update to Connect(WithSizeWrapper) inside a test was not wrapped in act(...).

      When testing, code that causes React state updates should be wrapped into act(...):

      act(() => {
        /* fire events that update state */
      });
      /* assert on the output */

      This ensures that you're testing the behavior the user would see in the browser. Learn more at https://reactjs.org/link/wrap-tests-with-act
          at ConnectFunction (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/connect.tsx:526:15)
          at div
          at TrackCounterImpl (/Volumes/Projects/profiler-2/src/components/timeline/TrackCounter.tsx:48:66)
          at ConnectFunction (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/connect.tsx:526:15)
          at Provider (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/Provider.tsx:60:11)
          at LocalizationProvider (/Volumes/Projects/profiler-2/node_modules/@fluent/react/index.js:260:75)

      1771 |       !objectShallowEquals(currentPreviewSelection, previewSelection)
      1772 |     ) {
    > 1773 |       dispatch({
           |       ^
      1774 |         type: 'UPDATE_PREVIEW_SELECTION',
      1775 |         previewSelection,
      1776 |       });

      at printWarning (node_modules/react-dom/cjs/react-dom.development.js:86:30)
      at error (node_modules/react-dom/cjs/react-dom.development.js:60:7)
      at warnIfUpdatesNotWrappedWithActDEV (node_modules/react-dom/cjs/react-dom.development.js:27628:9)
      at scheduleUpdateOnFiber (node_modules/react-dom/cjs/react-dom.development.js:25547:5)
      at forceStoreRerender (node_modules/react-dom/cjs/react-dom.development.js:16158:5)
      at handleStoreChange (node_modules/react-dom/cjs/react-dom.development.js:16134:7)
      at Object.checkForUpdates [as onStateChange] (node_modules/react-redux/src/components/connect.tsx:158:7)
      at Object.handleChangeWrapper [as callback] (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/react-redux/src/utils/Subscription.ts:29:20
      at defaultNoopBatch (node_modules/react-redux/src/utils/batch.ts:3:3)
      at Object.notify (node_modules/react-redux/src/utils/Subscription.ts:26:7)
      at Object.notifyNestedSubs (node_modules/react-redux/src/utils/Subscription.ts:124:15)
      at Object.checkForUpdates [as onStateChange] (node_modules/react-redux/src/components/connect.tsx:145:9)
      at Object.handleChangeWrapper [as callback] (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/react-redux/src/utils/Subscription.ts:29:20
      at defaultNoopBatch (node_modules/react-redux/src/utils/batch.ts:3:3)
      at Object.notify (node_modules/react-redux/src/utils/Subscription.ts:26:7)
      at Object.notifyNestedSubs (node_modules/react-redux/src/utils/Subscription.ts:124:15)
      at handleChangeWrapper (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/redux/src/createStore.ts:220:7
          at Map.forEach (<anonymous>)
      at dispatch (node_modules/redux/src/createStore.ts:219:15)
      at node_modules/redux-thunk/dist/cjs/redux-thunk.cjs:32:12
      at dispatch (node_modules/redux/src/applyMiddleware.ts:52:38)
      at dispatch (src/actions/profile-view.ts:1773:7)
      at node_modules/redux-thunk/dist/cjs/redux-thunk.cjs:30:14
      at Object.dispatch (src/test/components/TrackPower.test.tsx:197:5)

    console.error
      Warning: An update to Connect(WithSizeWrapper) inside a test was not wrapped in act(...).

      When testing, code that causes React state updates should be wrapped into act(...):

      act(() => {
        /* fire events that update state */
      });
      /* assert on the output */

      This ensures that you're testing the behavior the user would see in the browser. Learn more at https://reactjs.org/link/wrap-tests-with-act
          at ConnectFunction (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/connect.tsx:526:15)
          at div
          at TrackCounterImpl (/Volumes/Projects/profiler-2/src/components/timeline/TrackCounter.tsx:48:66)
          at ConnectFunction (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/connect.tsx:526:15)
          at Provider (/Volumes/Projects/profiler-2/node_modules/react-redux/src/components/Provider.tsx:60:11)
          at LocalizationProvider (/Volumes/Projects/profiler-2/node_modules/@fluent/react/index.js:260:75)

      1771 |       !objectShallowEquals(currentPreviewSelection, previewSelection)
      1772 |     ) {
    > 1773 |       dispatch({
           |       ^
      1774 |         type: 'UPDATE_PREVIEW_SELECTION',
      1775 |         previewSelection,
      1776 |       });

      at printWarning (node_modules/react-dom/cjs/react-dom.development.js:86:30)
      at error (node_modules/react-dom/cjs/react-dom.development.js:60:7)
      at warnIfUpdatesNotWrappedWithActDEV (node_modules/react-dom/cjs/react-dom.development.js:27628:9)
      at scheduleUpdateOnFiber (node_modules/react-dom/cjs/react-dom.development.js:25547:5)
      at forceStoreRerender (node_modules/react-dom/cjs/react-dom.development.js:16158:5)
      at handleStoreChange (node_modules/react-dom/cjs/react-dom.development.js:16134:7)
      at Object.checkForUpdates [as onStateChange] (node_modules/react-redux/src/components/connect.tsx:158:7)
      at Object.handleChangeWrapper [as callback] (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/react-redux/src/utils/Subscription.ts:29:20
      at defaultNoopBatch (node_modules/react-redux/src/utils/batch.ts:3:3)
      at Object.notify (node_modules/react-redux/src/utils/Subscription.ts:26:7)
      at Object.notifyNestedSubs (node_modules/react-redux/src/utils/Subscription.ts:124:15)
      at Object.checkForUpdates [as onStateChange] (node_modules/react-redux/src/components/connect.tsx:145:9)
      at Object.handleChangeWrapper [as callback] (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/react-redux/src/utils/Subscription.ts:29:20
      at defaultNoopBatch (node_modules/react-redux/src/utils/batch.ts:3:3)
      at Object.notify (node_modules/react-redux/src/utils/Subscription.ts:26:7)
      at Object.notifyNestedSubs (node_modules/react-redux/src/utils/Subscription.ts:124:15)
      at handleChangeWrapper (node_modules/react-redux/src/utils/Subscription.ts:129:20)
      at node_modules/redux/src/createStore.ts:220:7
          at Map.forEach (<anonymous>)
      at dispatch (node_modules/redux/src/createStore.ts:219:15)
      at node_modules/redux-thunk/dist/cjs/redux-thunk.cjs:32:12
      at dispatch (node_modules/redux/src/applyMiddleware.ts:52:38)
      at dispatch (src/actions/profile-view.ts:1773:7)
      at node_modules/redux-thunk/dist/cjs/redux-thunk.cjs:30:14
      at Object.dispatch (src/test/components/TrackPower.test.tsx:226:5)

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