Use consistent bash5 style for conditionals and quoting

bin/omarchy-hw-framework16

@@ -2,5 +2,5 @@
 
 # Detect whether the computer is a Framework Laptop 16.
 
-[[ "$(cat /sys/class/dmi/id/sys_vendor 2>/dev/null)" == "Framework" ]] &&
+[[ $(cat /sys/class/dmi/id/sys_vendor 2>/dev/null) == "Framework" ]] &&
   grep -q "Laptop 16" /sys/class/dmi/id/product_name 2>/dev/null