Is your feature request related to a problem? Please describe.
The date label of the event rate chart in the ML revert model snapshot flyout does not look ideal when it is near the border of the chart:

See codesandbox repro here https://codesandbox.io/s/sad-pond-n2pqh?file=/src/App.tsx

Describe the solution you'd like
Leave the small arrow where it is but re-position the text such that it is better readable / does not contain so many line breaks.

Additional context
In a slack discussion, it was suggested to reuse tooltip functionality to do this.