fixes

.DEBIAN/postrm

@@ -1,11 +1,11 @@
 #!/bin/bash
 
-if [ -f /etc/systemd/system/fastapi-dls.service ]; then
+if [ "$1" = purge ] && [ -f /etc/systemd/system/fastapi-dls.service ]; then
   echo "> Removing service file."
   rm /etc/systemd/system/fastapi-dls.service
 fi
 
-if [ -d /usr/share/fastapi-dls ]; then
+if [ "$1" = purge ] && [ -d /usr/share/fastapi-dls ]; then
   echo "> Removing app."
   rm -r /usr/share/fastapi-dls
 fi