Add remember me checkbox back to the combined login/registration page

lms/static/sass/views/_login-register.scss

@@ -220,6 +220,11 @@ $sm-btn-linkedin: #0077b5;
             font-weight: 500;
         }
 
+        #login-remember {
+            line-height: 0;
+            height: auto;
+        }
+
         label {
             display: block;
             margin: 0 0 6px 0;
@@ -239,6 +244,10 @@ $sm-btn-linkedin: #0077b5;
                 vertical-align: top;
             }
 
+            &[for="login-remember"] {
+                display: inline-block;
+            }
+
             a {
                 font-family: $sans-serif;
             }

openedx/core/djangoapps/user_api/tests/test_views.py

@@ -646,7 +646,18 @@ class LoginSessionViewTest(ApiTestCase):
                     "max_length": PASSWORD_MAX_LENGTH
                 },
                 "errorMessages": {},
-            }
+            },
+            {
+                "name": "remember",
+                "defaultValue": False,
+                "type": "checkbox",
+                "required": False,
+                "label": "Remember me",
+                "placeholder": "",
+                "instructions": "",
+                "restrictions": {},
+                "errorMessages": {},
+            },
         ])
 
     def test_login(self):

openedx/core/djangoapps/user_api/views.py

@@ -102,6 +102,14 @@ class LoginSessionView(APIView):
             }
         )
 
+        form_desc.add_field(
+            "remember",
+            field_type="checkbox",
+            label=_("Remember me"),
+            default=False,
+            required=False,
+        )
+
         return HttpResponse(form_desc.to_json(), content_type="application/json")
 
     @method_decorator(require_post_params(["email", "password"]))