Use consistent bash5 style for conditionals and quoting

install/config/hardware/intel.sh

@@ -2,9 +2,9 @@
 # Check if we have an Intel GPU at all
 if INTEL_GPU=$(lspci | grep -iE 'vga|3d|display' | grep -i 'intel'); then
   # HD Graphics and newer uses intel-media-driver
-  if [[ "${INTEL_GPU,,}" =~ "hd graphics"|"xe"|"iris" ]]; then
+  if [[ ${INTEL_GPU,,} =~ "hd graphics"|"xe"|"iris" ]]; then
     omarchy-pkg-add intel-media-driver
-  elif [[ "${INTEL_GPU,,}" =~ "gma" ]]; then
+  elif [[ ${INTEL_GPU,,} =~ "gma" ]]; then
     # Older generations from 2008 to ~2014-2017 use libva-intel-driver
     omarchy-pkg-add libva-intel-driver
   fi