Additional test, remove .adds/scripts too

web/src/js/app.js

@@ -618,7 +618,6 @@ import JSZip from 'jszip';
     }
 
     function goToNickelMenuConfig() {
-        checkNickelMenuInstalled();
         renderFeatureCheckboxes();
         const currentOption = $q('input[name="nm-option"]:checked', stepNickelMenu);
         nmConfigOptions.hidden = !currentOption || currentOption.value !== 'preset';
@@ -716,6 +715,11 @@ import JSZip from 'jszip';
                 } catch {
                     // ignore — folder may already be gone
                 }
+                try {
+                    await device.removeEntry(['.adds', 'scripts'], { recursive: true });
+                } catch {
+                    // ignore — folder may already be gone
+                }
                 nmProgress.textContent = 'Creating uninstall marker...';
                 await device.writeFile(['.adds', 'nm', 'uninstall'], new Uint8Array(0));