Update EAR Defaults

The default entity-activation-range settings were set high to ensure no compromise to vanilla behavior

However, we have had adequate time to make sure this feature works as expected, and we can now safely
reduce the default settings.

We mainly need to do this as most users run with the default setting and we constantly have to suggest
to them to reduce their EAR settings. So rather than telling everyone to change it, lets change the default.

These settings should work fine for everyone, as behavioral actions trigger "immunity" and the settings
apply to "idle" entities that are not being "used" or engaged, so no-one should notice much difference.

This will give new users better performing settings.