Форма обратной связи на сайте-одностраничнике

from django.shortcuts import render, redirect
from django.core.mail import send_mail, BadHeaderError
from django.http import HttpResponse
from .forms import Contact
 
 
 
def index(request):
    return render(request, 'djacson/index.html')
 
def contact(request):
    if request.method == 'POST':
        form = Contact(request.POST)
        if form.is_valid():
            subject: form.cleaned_data['theme']
            body = {'first_name': form.cleaned_data['first_name'],
                    'frommail': form.cleaned_data['fromemail'],
                    'message': form.cleaned_data['message']}
            message = '\n'.join(body.values())
            try:
                send_mail(subject, message, None, ['dm.pleshkov@mail.ru'])
 
            except BadHeaderError:
                return HttpResponse('Invalid header found')
                # return redirect('index')
    else:
        form = Contact()
    return render(request, 'djacson/index.html', {'form': form})

from django.contrib import admin
from django.urls import path
from djacson.views import index
 
 
urlpatterns = [
    path('admin/', admin.site.urls),
    path('index/', index, name='index'),
]

from django import forms
 
 
class Contact(forms.Form):
    first_name = forms.CharField(max_length=50, min_length=2, required=True, widget=forms.TextInput(attrs={'class':'form-control', 'placeholder':'Имя', 'label': ''}))
    fromemail = forms.EmailField(max_length=50, required=True, widget=forms.EmailInput(attrs={'class':'form-control', 'placeholder':'Ваша почта'}))
    theme = forms.CharField(max_length=100, required=True, widget=forms.TextInput(attrs={'class':'form-control', 'placeholder':'Тема'}))
    message = forms.CharField(widget=forms.Textarea(attrs={'class':'form-control', 'placeholder':' Сообщение ', 'cols': 30, 'rows': 7}),max_length=1000)