Markdown parser unable to process some TypeScript demos when ts code blocks are used

[wise-king-sullyman]

Per patternfly/patternfly-react#6692 a ```ts specified code block is unable to be used with some TypeScript demos.

[nicolethoen]

I believe this is related to the fact that this demo imports the DashboardWrapper, which is still not converted to typescript.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[wise-king-sullyman]

Begone stalebot.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[jenny-s51]

Update: all Dashboard components have now been converted to TS, but using a ```ts specified code block still doesn't work for demos that import the Dashboard components