Event pages failing to load due to missing bracket information

[ZachOrr]

Report of https://www.thebluealliance.com/event/2024marea failing to load during the event. Was able to repro locally and the issue looks related to missing bracket information

ERROR    2024-03-17 19:30:25,259 /tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/app.py:828] backend.web.main: Exception on /event/2024marea [GET]
Traceback (most recent call last):
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/app.py", line 1463, in wsgi_app
    response = self.full_dispatch_request()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/app.py", line 872, in full_dispatch_request
    rv = self.handle_user_exception(e)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/app.py", line 870, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/app.py", line 855, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)  # type: ignore[no-any-return]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tba/src/backend/common/decorators.py", line 33, in decorated_function
    resp = make_response(func(*args, **kwargs))
                         ^^^^^^^^^^^^^^^^^^^^^
  File "/tba/src/backend/web/handlers/event.py", line 283, in event_detail
    render_template("event_details.html", template_values),
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tba/src/backend/web/profiled_render.py", line 8, in render_template
    return flask_render_template(template, **template_values)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/templating.py", line 150, in render_template
    return _render(app, template, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/flask/templating.py", line 131, in _render
    rv = template.render(context)
         ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/jinja2/environment.py", line 1301, in render
    self.environment.handle_exception()
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "/tba/src/backend/web/templates/event_details.html", line 3, in top-level template code
    {% import 'event_partials/event_macros.html' as em %}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tba/src/backend/web/templates/base.html", line 105, in top-level template code
    {% block content %}
  File "/tba/src/backend/web/templates/event_details.html", line 222, in block 'content'
    {% include "bracket_partials/double_elim_bracket_table.html" %}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tba/src/backend/web/templates/bracket_partials/double_elim_bracket_table.html", line 146, in top-level template code
    {{ bracket_match('Finals', bracket_table.f.get('f1'), 'Winner of M11', 'Winner of M13') }}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmpw3ekrnkh/lib/python3.12/site-packages/jinja2/environment.py", line 485, in getattr
    return getattr(obj, attribute)
           ^^^^^^^^^^^^^^^^^^^^^^^
jinja2.exceptions.UndefinedError: 'dict object' has no attribute 'f'

[ZachOrr]

Temp fix at 28ac20d