ModuleUpdate: skip disabled/hidden folders (#1070)

* ModuleUpdate: skip non-worlds

* ModuleUpdate: don't skip _* folders

- _* folders may be used for libraries
- this means to properly disable a world, it has to be renamed with a preceding `.`

ModuleUpdate.py

@@ -13,10 +13,12 @@ update_ran = getattr(sys, "frozen", False)  # don't run update if environment is
 
 if not update_ran:
     for entry in os.scandir(os.path.join(local_dir, "worlds")):
-        if entry.is_dir():
-            req_file = os.path.join(entry.path, "requirements.txt")
-            if os.path.exists(req_file):
-                requirements_files.add(req_file)
+        # skip .* (hidden / disabled) folders
+        if not entry.name.startswith("."):
+            if entry.is_dir():
+                req_file = os.path.join(entry.path, "requirements.txt")
+                if os.path.exists(req_file):
+                    requirements_files.add(req_file)
 
 
 def update_command():