Add django-material widget template for select 2 multiple select widget

aleksis/core/forms.py

@@ -175,7 +175,7 @@ class AnnouncementForm(ExtensibleForm):
                 "last_name__icontains",
                 "short_name__icontains",
             ],
-            attrs={"data-minimum-input-length": 0},
+            attrs={"data-minimum-input-length": 0, "class": "browser-default"},
         )
     )
     groups = forms.ModelMultipleChoiceField(
@@ -184,7 +184,7 @@ class AnnouncementForm(ExtensibleForm):
                 "name__icontains",
                 "short_name__icontains",
             ],
-            attrs={"data-minimum-input-length": 0},
+            attrs={"data-minimum-input-length": 0, "class": "browser-default"},
         )
     )
 

aleksis/core/templates/fields/django_select2_modelselect2multiplewidget.html

-{% load l10n material_form material_form_internal %}
-{% part bound_field.field %}<{{ field.widget.component|default:'dmc-select' }}><div class="row">
-</div></{{ field.widget.component|default:'dmc-select' }}>{% endpart %}

aleksis/core/templates/material/fields/django_select2_modelselect2multiplewidget.html

+{% load l10n material_form material_form_internal %}
+{% part bound_field.field %}<{{ field.widget.component|default:'dmc-select' }}><div class="row">
+    <div{% attrs bound_field 'group' %}
+        id="id_{{ bound_field.html_name }}_container"
+        class="input-field col s12{% if field.required %} required{% endif %}{% if bound_field.errors %} has-error{% endif %}"
+    {% endattrs %}>
+        {% part field prefix %}{% endpart %}{% part field label %}
+        <label{% attrs bound_field 'label' %}
+            for="{{ bound_field.id_for_label }}"
+        {% endattrs %}>{{ bound_field.label }}</label>
+        {% endpart %}
+        {% part field control %}
+        {{ bound_field }}
+        {% endpart %}
+        {% part field help_text %}{% if field.help_text %}
+            <div class="help-block">{{ bound_field.help_text|safe }}</div>
+        {% endif %}{% endpart %}{% part field errors %}
+        {% if bound_field.errors %}
+            {% include  'material/field_errors.html' %}
+        {% endif %}{% endpart %}{{ hidden_initial }}
+    </div>
+</div></{{ field.widget.component|default:'dmc-select' }}>{% endpart %}