Create new "power user" flag to disable warnings and validation

Thanks for opening this. My personal preference would be to introduce multiple config variables rather than a single catch-all flag like power_user_mode. For example, something like:

• skip_filter_enforcement
• skip_html_input_stripping

Personally, I would want to disable both, but I could see others wanting to disable just one or the other.

As more options get added over time, I could see power users wanting different combinations of behavior. Having discrete flags keeps it flexible and future-proof.

You could always do both. Support individual variables, but wrap them like this:

if ($config['power_user_mode'] ?? FALSE) {
  $skip_filter_enforcement = TRUE;
  $skip_html_input_stripping = TRUE;
}

This could give us the best of both worlds: fine-grained control and a simple, global override.