* Add per-feed option to show or hide enclosures
Some feeds attach lots of enclosures (images, audio, video, downloads)
that clutter the article view for readers who only want the text. Add
a per-feed "Show enclosures" setting (Feed configuration > Display),
defaulting to "by default" (i.e. shown, matching current behaviour),
following the same ternary-attribute pattern used by existing
per-feed overrides such as show_unread_count and read_upon_gone.
Also apply the preference to the GReader-compat API content call and
the Fever API entry serialization, so third-party clients like Reeder
and Fever apps respect it too, not just the normal web UI. Renamed the
translation key to display_enclosures to match the underlying feed
attribute name.
Fixes#4999
* i18n: fr
* Fix Fever API
* Remove accessor
* Forgotten fix
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Co-authored-by: Gerard Alvear <gerard.alvear@logiqd.me>
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>
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