Energyquantified

------

**Dependencies**

- Unpin ``websocket-client`` to allow for the latest version
(until next major release)

----

**Improvements**

- Minor documentation improvements
- Added support for Polars data frames conversion
- Introduced new methods: ``to_pl_df()`` and ``to_polars_dataframe()``
- Renamed Pandas data frame conversion methods for clarity and consistency
- ``to_df()`` → ``to_pd_df()`` (old method deprecated)
- ``to_dataframe()`` → ``to_pandas_dataframe()`` (old method deprecated)

**Bugfixes**

- Instances from ``eq.instances.list()`` previously had their ``issued`` time
parsed in the UTC timezone. This has been fixed to be parsed in the curve's
``instance_issued_timezone`` if a curve *object* is provided to the method,
otherwise (curve *name*) it will be parsed as a datetime with offset.

-------

**Improvements**

- Add parameters ``source`` and ``only_subscribed`` to ``eq.metadata.curves()``
for filtering by source and subscribed curves, respectively.
- Update curve search documentation with examples on how to filter by source
and subscribed curves.

-------

**Bugfixes**

- Fix typo in ``InstancesAPI.load()``

-------

**Improvements**

- Update border definitions

------

**Bugfixes**

- Fix a bug in ``TimeseriesList.to_df()`` sorting in the wrong order