fix grep bash_completion

apptui

@@ -638,7 +638,7 @@ double" | gum filter --height $height)
 }
 
 is_completion_enabled() {
-	if [ "$(grep -o "appman" < ~/.bash_completion | head -1)" == "appman" ]; then
+	if [ "$(grep -o "appman" ~/.bash_completion 2>/dev/null | head -1)" == "appman" ]; then
 		echo "AppMan"
 	fi
 	if test -f /etc/bash_completion.d/am-completion.sh; then