Description

When ran with bedrock's linux strata restrict option (like strat -r void fastfetch) fastfetch shouldn't try to detect Bedrock.
It also shouldn't detect package managers from other strata (client distros on top of bedrock linux)

Motivation

Neofetch works in this way, would be nice to have fastfetch do the same.

Additional context

i am not familiar with fastfetch's code much, but should be trivial ig

this is the piece of code neofetch uses to detect bedrock
if [[ -f /bedrock/etc/bedrock-release && -z $BEDROCK_RESTRICT ]]; then
iirc fastfetch also uses the file, but doesn't check BEDROCK_RESTRICT env, which is empty when not restricted and 1 when restricted