fix(userbot): add missing safone.py imports, apply ruff --unsafe-fixes

- Add missing aiohttp, PIL, BytesIO imports to safone.py (F821 runtime bugs)
- Apply ruff --unsafe-fixes (27 fixes): ternary operators, .get() patterns,
  contextlib.suppress, enumerate(), collapsible if/else, remove .keys()

userbot/modules/notes.py

@@ -105,7 +105,7 @@ async def notes(_, message: Message):
     await message.edit('<b>Loading...</b>')
     text = 'Available notes:\n\n'
     collection = db.get_collection('core.notes')
-    for note in collection.keys():
+    for note in collection:
         if note[:4] == 'note':
             text += f'<code>{note[4:]}</code>\n'
     await message.edit(text)