Tomtoolkit

- Fixes a bug when submitting observations for dynamic cadences produced by the photometric sequence form.
- Fixes a bug showing an inappropriate error message when LCO validation fails.

- Updated TNS URL to the new URL used by TNS in the broker and harvester modules.
- Modified ``ObservationRecord``, ``ObservationTemplate``, ``BrokerQuery``, and ``ReducedDatum`` to use ``JSONField`` instead of ``TextField``.
- Dependency updates.

What to watch out for

- This release requires running ``./manage.py migrate``.
- Any uses of ``ObservationRecord.serialize_parameters()``, ``ObservationRecord.parameters_as_dict``, ``BrokerQuery.parameters_as_dict``, ``ObservationTemplate.serialize_parameters()`` should be replaced with ``<ModelName>.parameters``.
- Any uses of ``GenericQueryForm.serialize_parameters()`` should be replaced with ``GenericQueryForm.cleaned_data``. This applies to any broker query forms.

In this release:

- Added a new observing form for MUSCAT submissions to LCO.
- Fixed a bug resulting in observations with unknown status not showing up in alert bubble on target detail page.

This release provides a new `TargetNameSearchView` that allows a user to search for a target name and be redirected to the target detail page for that name, provided there's only one result. The new view is documented [here](https://tom-toolkit.readthedocs.io/en/stable/api/tom_targets/views.html#tom_targets.views.TargetNameSearchView).

Fixes a bug that allowed negative exposure time and exposure count in the LCOPhotometricSequenceForm.
Fixes out-of-date references to `LCOObservationForm` in documentation.
Adds links and descriptions of new supported modules to documentation.

This release does the following:

- Updated MARS and ALeRCE modules to support future Dash Broker additions.
- Various documentation improvements and code style fixes.