removed reliance on built-in django ModelForms from templates/core/base.html, apps.dashboard.forms, .tests.test_forms & .test_views

src/templates/core/base.html

@@ -18,10 +18,20 @@
                     <h2 class="display-2 mb-2">{% block header_text %}{% endblock header_text %}</h2>
 
                     <form method="POST" action="{% block form_action %}{% endblock form_action %}">
-                        {{ form.text }}
                         {% csrf_token %}
+                        <input
+                            id="id_text"
+                            name="text"
+                            class="form-control form-control-lg{% if form.errors %} is-invalid{% endif %}"
+                            placeholder="Enter a to-do item"
+                            value="{{ form.text.value | default:'' }}"
+                            aria-describedby="id_text_feedback"
+                            required
+                        />
                         {% if form.errors %}
-                            <div class="invalid-feedback">{{ form.errors.text }}</div>
+                            <div id="id_text_feedback" class="invalid-feedback">
+                                {{ form.errors.text.0 }}
+                            </div>
                         {% endif %}
                     </form>
                 </div>