[feature] ingest & archive Mastodon 'bookmarks'

[masukomi]

This should be done after building a centralized OAuth Token management system, or at least the core bones of one.

as a user i want all my bookmarks in the same location with the same level & style of archiving. When I use the 'bookmark' functionality on Mastodon i wish for those posts to be automatically ingested into my Backup Brain and archived like any other bookmark.

Proposed implementation

Ingested mastodon bookmarks:

• should be visually distinguishable from "normal" bookmarks
• would ideally have an archive that includes the text of all replies to the initial post by the original author (archive the whole thread)
• would not NOT archive replies by other people, or the original author's replies to other people's replies
• would archive images in the post and its replies locally
• would be ingested in by a regularly scheduled background process

Additionally, this should support the fact that people have multiple mastodon accounts on multiple servers

Reference:

• mastodon bookmark API docs
• requires a Bearer <user token> authorization header.
• requires a settings page where users can enter said token & the domain of the server it can be used on.
• requires supporting the concept of a Mastodon Account (Fediverse Account? Mastodon(ish) Account?) object, or objects, that are attached to the User object.