support tiny-tiny-rss database import

[write3371]

Clear and concise description of the problem

support tiny-tiny-rss database import

Suggested solution

including bookmark articles and notes that may not come from any rss subscriptions

Alternative

No response

Additional context

No response

Validations

• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[linear[bot]]

FOL-537 support tiny-tiny-rss database import

[DIYgod]

You can import your subscriptions through an OPML file, which is the most common method, and I believe tiny-tiny-rss also has the function to export OPML.