* Add option to create HTML snapshot for bulk edit
* Add the prerequisite for displaying the "Create HTML Snapshot" bulk action option
* Add test case
This test case covers the scenario where the bulk actions panel displays the corresponding options when the HTML snapshot feature is enabled.
* Use the existing `tasks.create_html_snapshots()` instead of the for loop
* Fix the exposure of `settings.LD_ENABLE_SNAPSHOTS` within `BookmarkListContext`
* add service tests
* cleanup context
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Co-authored-by: Sascha Ißbrücker <sascha.issbruecker@gmail.com>