add uninstall script

uninstall.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+PROGRAM_NAME="nwg-displays"
+MODULE_NAME="nwg_displays"
+SITE_PACKAGES="$(python3 -c "import sysconfig; print(sysconfig.get_paths()['purelib'])")"
+PATTERN="$SITE_PACKAGES/$MODULE_NAME*"
+
+# Remove from site_packages
+for path in $PATTERN; do
+    if [ -e "$path" ]; then
+        echo "Removing $path"
+        rm -r "$path"
+    fi
+done
+
+# Remove launcher scripts
+filenames=("/usr/bin/nwg-displays")
+
+for filename in "${filenames[@]}"; do
+  rm -f "$filename"
+  echo "Removing -f $filename"
+done
+
+rm -f "/usr/share/applications $PROGRAM_NAME.desktop"
+rm -f "/usr/share/pixmaps $PROGRAM_NAME.svg"
+rm -f /usr/share/licenses/$PROGRAM_NAME/LICENSE
+rm -f /usr/share/doc/$PROGRAM_NAME/README.md