Reactivate devtools validation

[Marc-Andre-Rivet]

As part of https://github.com/plotly/dash-docs/pull/831 and https://github.com/plotly/dash-docs/pull/849, the DevTools asserts have been deactivated because the code wildcards implementation and callbacks validation uncovered pre-existing bugs. As the behavior/features all worked fine after the Dash v1.11.0 release it was decided to go forward with the docs release and backfill.