support new exactOptionalPropertyTypes option for stricter types #1156
Description
Is your feature request related to a problem? Please describe.
I upgraded typescript to 4.4.2 and enabled the new flag exactOptionalPropertyTypes for stricter types. Problem is that the errors are only shown when I run svelte-check but not in VSCode itself.
Describe the solution you'd like
Make the Svelte VSCode extension show the errors and the correct type information.