pwa: add missing forms.py (#31388)

combo/apps/pwa/forms.py

@@ -0,0 +1,25 @@
+# combo - content management system
+# Copyright (C) 2019  Entr'ouvert
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from django import forms
+
+from .models import PwaSettings
+
+
+class PwaSettingsForm(forms.ModelForm):
+    class Meta:
+        model = PwaSettings
+        exclude = ('push_notifications_infos',)