[FEATURE] Support Sync Storage

[thehale]

Browser

Chrome, Firefox, Edge

OS

Win

Feature Description

The currently supported browsers all implement "Sync Storage", which has a similar API surface to localStorage, but automatically syncs its data between browsers for signed-in users.

It seems like a promising option for offering a meaningful sync feature in the extension without any of the typical hard work of building/maintaining your own server infrastructure.

[sheepzh]

@thehale hi, this extension now supports syncing tracking data via GitHub Gist/Obsidian/WebDAV services, which is more like a C/S architecture. however, syncing via the Sync Storage API is more like a distributed architecture, which is complex when dealing with primary key conflicts across multiple clients.

btw, I plan to sync the options and kinds of rules via Sync Storage later, to make all the options same among browsers.

[sheepzh]

there's another reason preventing me from doing this. the storage provided by browsers is limited. now, this extension even suggests using IndexedDB to store tracking data. you can enable it in the options.