Allow bookmarks to have empty title and description (#843)

* add migration for merging fields

* remove usage of website title and description

* keep empty website title and description in API for compatibility

* restore scraping in API and add option for disabling it

* document API scraping behavior

* remove deprecated fields from API docs

* improve form layout

* cleanup migration

* cleanup website loader

* update tests

bookmarks/tests/test_bookmark_edit_view.py

@@ -80,8 +80,6 @@ class BookmarkEditViewTestCase(TestCase, BookmarkFactoryMixin):
             title="edited title",
             description="edited description",
             notes="edited notes",
-            website_title="website title",
-            website_description="website description",
         )
 
         response = self.client.get(reverse("bookmarks:edit", args=[bookmark.id]))
@@ -114,7 +112,7 @@ class BookmarkEditViewTestCase(TestCase, BookmarkFactoryMixin):
 
         self.assertInHTML(
             f"""
-            <textarea name="description" cols="40" rows="2" class="form-input" id="id_description">
+            <textarea name="description" cols="40" rows="3" class="form-input" id="id_description">
                 {bookmark.description}
             </textarea>
         """,
@@ -130,22 +128,6 @@ class BookmarkEditViewTestCase(TestCase, BookmarkFactoryMixin):
             html,
         )
 
-        self.assertInHTML(
-            f"""
-            <input type="hidden" name="website_title"  id="id_website_title"
-                    value="{bookmark.website_title}">
-        """,
-            html,
-        )
-
-        self.assertInHTML(
-            f"""
-            <input type="hidden" name="website_description"  id="id_website_description"
-                    value="{bookmark.website_description}">
-        """,
-            html,
-        )
-
     def test_should_redirect_to_return_url(self):
         bookmark = self.setup_bookmark()
         form_data = self.create_form_data()