[mod] addition of various type hints / tbc

- pyright configuration [1]_
- stub files: types-lxml [2]_
- addition of various type hints
- enable use of new type system features on older Python versions [3]_
- ``.tool-versions`` - set python to lowest version we support (3.10.18) [4]_:
  Older versions typically lack some typing features found in newer Python
  versions.  Therefore, for local type checking (before commit), it is necessary
  to use the older Python interpreter.

.. [1] https://docs.basedpyright.com/v1.20.0/configuration/config-files/
.. [2] https://pypi.org/project/types-lxml/
.. [3] https://typing-extensions.readthedocs.io/en/latest/#
.. [4] https://mise.jdx.dev/configuration.html#tool-versions

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Format: reST

searx/engines/mojeek.py

@@ -1,8 +1,6 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 """Mojeek (general, images, news)"""
 
-from typing import TYPE_CHECKING
-
 from datetime import datetime
 from urllib.parse import urlencode
 from lxml import html
@@ -50,13 +48,6 @@ region_param = 'arc'
 
 _delta_kwargs = {'day': 'days', 'week': 'weeks', 'month': 'months', 'year': 'years'}
 
-if TYPE_CHECKING:
-    import logging
-
-    logger = logging.getLogger()
-
-traits: EngineTraits
-
 
 def init(_):
     if search_type not in ('', 'images', 'news'):