chore: update .gitignore to exclude Arch Linux build artifacts and remove mistakenly tracked packages

.gitignore

@@ -1,5 +1,13 @@
 # Dependencies
-**/node_modules/
+**/# Arch Linux Build Artifacts
+pkg/
+src/
+*.pkg.tar.zst
+*.src.tar.gz
+ultimate-ban-tracker-*.tar.gz
+
+# Node.js
+node_modules/
 /.pnp
 .pnp.js