Use consistent bash5 style for conditionals and quoting

bin/omarchy-refresh-chromium

@@ -6,7 +6,7 @@ CONFIG_FILE="$HOME/.config/chromium-flags.conf"
 INSTALL_GOOGLE_ACCOUNTS=false
 
 # Check if google accounts were installed
-if [[ -f "$CONFIG_FILE" ]] && \
+if [[ -f $CONFIG_FILE ]] && \
   grep -q -- "--oauth2-client-id" "$CONFIG_FILE" && \
   grep -q -- "--oauth2-client-secret" "$CONFIG_FILE"; then
   INSTALL_GOOGLE_ACCOUNTS=true
@@ -16,6 +16,6 @@ fi
 omarchy-refresh-config chromium-flags.conf
 
 # Re-install Google accounts if previously configured
-if [[ "$INSTALL_GOOGLE_ACCOUNTS" == true ]]; then
+if [[ $INSTALL_GOOGLE_ACCOUNTS == "true" ]]; then
   omarchy-install-chromium-google-account
 fi