Browser: Enable local backup support
Description
Adds support for seedvault. Previously only google sync was supported.
This adds support for backing up most browser data, including bookmarks, preferred settings and search history. It also preserved the logged-in session for murena.io. It is unclear whether it will do the same for other websites.
Screenshots
Technical details
Tests
Issues
https://gitlab.e.foundation/e/os/backlog/-/work_items/4223
https://gitlab.e.foundation/e/os/backlog/-/work_items/4226
10 commandments of code review
Edited by Mohammed Althaf T