Add bulk and single bookmark metadata refresh (#999)

* Add url create/edit query paramter to clear cache

* Add refresh bookmark metadata button in create/edit bookmark page

* Fix refresh bookmark metadata when editing existing bookmark

* Add bulk refresh metadata functionality

* Fix test cases for bulk view dropdown selection list

* Allow bulk metadata refresh when background tasks are disabled

* Move load preview image call on refresh metadata

* Update bookmark modified time on metadata refresh

* Rename function to align with convention

* Add tests for refresh task

* Add tests for bookmarks service refresh metadata

* Add tests for bookmarks api disable cache on check

* Remove bulk refresh metadata when background tasks disabled

* Refactor refresh metadata task

* Remove unnecessary call

* Fix testing mock name

* Abstract clearing metadata cache

* Add test to check if load page is called twice when cache disabled

* Remove refresh button for new bookmarks

* Remove strict disable cache is true check

* Refactor refresh metadata form logic into its own function

* move button and highlight changes

* polish and update tests

---------

Co-authored-by: Sascha Ißbrücker <sascha.issbruecker@gmail.com>

bookmarks/tests/test_bookmarks_api.py

@@ -1047,6 +1047,43 @@ class BookmarksApiTestCase(LinkdingApiTestCase, BookmarkFactoryMixin):
 
         self.assertCountEqual(auto_tags, ["tag1", "tag2"])
 
+    def test_check_ignore_cache(self):
+        self.authenticate()
+
+        with patch.object(
+            website_loader, "load_website_metadata"
+        ) as mock_load_website_metadata:
+            expected_metadata = WebsiteMetadata(
+                "https://example.com",
+                "Scraped metadata",
+                "Scraped description",
+                "https://example.com/preview.png",
+            )
+            mock_load_website_metadata.return_value = expected_metadata
+
+            # Does not ignore cache by default
+            url = reverse("linkding:bookmark-check")
+            check_url = urllib.parse.quote_plus("https://example.com")
+            self.get(
+                f"{url}?url={check_url}",
+                expected_status_code=status.HTTP_200_OK,
+            )
+
+            mock_load_website_metadata.assert_called_once_with(
+                "https://example.com", ignore_cache=False
+            )
+            mock_load_website_metadata.reset_mock()
+
+            # Ignores cache based on query param
+            self.get(
+                f"{url}?url={check_url}&ignore_cache=true",
+                expected_status_code=status.HTTP_200_OK,
+            )
+
+            mock_load_website_metadata.assert_called_once_with(
+                "https://example.com", ignore_cache=True
+            )
+
     def test_can_only_access_own_bookmarks(self):
         self.authenticate()
         self.setup_bookmark()