chore(makefile): add cleanup command to remove all node_modules folder

Author: Fuss Florian (uid10804)

Makefile

@@ -81,4 +81,11 @@ ifndef GH_TOKEN
 endif
 	make install
 	npx lerna version --include-merged-tags --force-publish --conventional-commits --create-release github
-	npx lerna publish from-git --yes
+	npx lerna publish from-git --yes
+
+.PHONY: cleanup
+cleanup:
+	rm -rf node_modules
+	cd packages/cli && rm -rf node_modules
+	cd packages/template && rm -rf node_modules
+	cd packages/server && rm -rf node_modules