chore: Update create-theme workflow to handle preferences file

.github/workflows/create-theme.yml

@@ -48,6 +48,7 @@ jobs:
 
       - name: Write preferences to file
         uses: "DamianReeves/write-file-action@master"
+        if: fromJson(steps.issue-parser.outputs.jsonString)['preferences'] != ''
         with:
           contents: ${{ fromJson(steps.issue-parser.outputs.jsonString)['preferences'] }}
           path: theme-preferences.json

scripts/submit-theme.py

@@ -150,13 +150,18 @@ Just joking, you can do whatever you want. You're the boss.
     with open(f"themes/{theme_id}/{README_FILE}", 'w') as f:
         f.write(get_readme())
 
-    with open(f"themes/{theme_id}/{PREFERENCES_FILE}", 'w') as f:
+    if os.path.exists(TEMPLATE_PREFERENCES_FILE):
+        prefs_file = f"themes/{theme_id}/{PREFERENCES_FILE}"
+        with open(prefs_file, 'w') as f:
             prefs = get_preferences()
             if len(prefs) > 0:
                 print("Detected preferences file. Please review the preferences below.")
                 print(prefs)
                 theme['preferences'] = get_static_asset(theme_id, PREFERENCES_FILE)
                 json.dump(prefs, f)
+            else:
+                print("No preferences detected.")
+                os.remove(prefs_file)
 
     download_image(image, f"themes/{theme_id}/{IMAGE_FILE}")