Fix login form errors not appearing

Fixes #175

static/css/style.css

@@ -221,6 +221,10 @@ header menu a.identity {
     width: 250px;
 }
 
+body.no-sidebar header menu a.identity {
+    display: none;
+}
+
 header menu a.identity i {
     display: inline-block;
     vertical-align: middle;
@@ -289,11 +293,13 @@ nav a i {
 .columns {
     display: flex;
     align-items: stretch;
+    justify-content: center;
 }
 
 .left-column {
     flex-grow: 1;
     width: 300px;
+    max-width: 700px;
     padding: 15px;
 }
 
@@ -315,6 +321,10 @@ nav a i {
     border-radius: 0 0 5px 0;
 }
 
+body.no-sidebar .right-column {
+    display: none;
+}
+
 .right-column h2 {
     background: var(--color-highlight);
     padding: 8px 10px;

templates/auth/login.html

@@ -2,11 +2,14 @@
 
 {% block title %}Login{% endblock %}
 
+{% block body_class %}no-sidebar{% endblock %}
+
 {% block content %}
     <form action="." method="POST">
         {% csrf_token %}
         <fieldset>
             <legend>Login</legend>
+            {{ form.non_field_errors }}
             {% for field in form %}
                 {% include "forms/_field.html" %}
             {% endfor %}

users/views/auth.py

@@ -1,8 +1,10 @@
 from django import forms
 from django.conf import settings
+from django.contrib.auth.forms import AuthenticationForm
 from django.contrib.auth.password_validation import validate_password
 from django.contrib.auth.views import LoginView, LogoutView
 from django.shortcuts import get_object_or_404, render
+from django.utils.translation import gettext_lazy as _
 from django.views.generic import FormView
 
 from core.models import Config
@@ -10,6 +12,11 @@ from users.models import Invite, PasswordReset, User
 
 
 class Login(LoginView):
+    class form_class(AuthenticationForm):
+        error_messages = {
+            "invalid_login": _("No account was found with that email and password."),
+            "inactive": _("This account is inactive."),
+        }
 
     template_name = "auth/login.html"