"For support enforcers only" as default support option

[khenriks]

I'm using the standard profiles for printing on a Prusa MK4, and currently, the default support option is to generate no supports, but I would like to petition to change the default to "For support enforcers only".

My reasoning is that by default, there will still be no change in behavior (support enforcers won't be present unless the user adds them). However, if the user does add support enforcers, this will allow those to take effect immediately without them having to also change the support setting, which will streamline things.

Therefore, I believe this change will not adversely impact any workflows, but will improve some workflows, making it a net positive.