Since some code lacks type annotations, fill in missing annotations and use mypy (strict) for type checking.

• Update WTForms to version 3 (released).
• Update SQLAlchemy to version 2 (unreleased but upcoming)

The current method of selecting a column converter does not allow custom converters to be used.

Create a WTForms field which converts the value from an HTML datetime-local field to UTC.

Create helper functions (in the module fsw.helpers) for loading and updating model and form data with Python dictionaries.

• The fill function should update the attributes of instance using the dictionary values.
• The get_model_instance_dictionary function should return a dictionary of the column values of a model instance, using the attribute names as keys.
• The get_form_instance_dictionary function should return a dictionary of the field values of a form instance, using the attribute names as keys.

• Create a DeleteModelMixin that adds a delete method to models, which deletes a model instance from the database.
• Create a SoftDeleteModelMixin that adds an is_deleted boolean field or a delete_time time field to models. The delete method should set is_deleted to True or delete_time to the current time. The delete_time field could be named deleted_time or deleted_at.

Revamp the changelog (CHANGES.md) to start with version 0.3.

Create guides for various Flask patterns, including the following.

• Creating a simple application with various folder structures.
• Managing and applying database migrations with alembic.
• Creating commands with flask and click.

• Create a render_fields Jinja macro that renders each field bound to a form.
• Create similar macros for frameworks such as Bootstrap (see bhushan-mohanraj/math-club and greyli/bootstrap-flask).

Fix the remaining Pylint warnings, or explicitly ignore them where needed.

Upload FSW to PyPI. Since the fsw package is taken, upload FSW as bhushan-mohanraj-fsw.