Currently translated at 55.2% (485 of 878 strings)

Translation: Funkwhale/Funkwhale's server front-end
Translate-URL: https://translate.funkwhale.audio/projects/funkwhale/front/ar/

Fix #830: Better handling of follow/accept messages to avoid and recover from desync between instances

Currently translated at 71.6% (629 of 878 strings)

Translation: Funkwhale/Funkwhale's server front-end
Translate-URL: https://translate.funkwhale.audio/projects/funkwhale/front/fr/

Currently translated at 89.7% (808 of 901 strings)

Translation: Funkwhale/Funkwhale's server front-end
Translate-URL: https://translate.funkwhale.audio/projects/funkwhale/front/eo/

Fix #550: Show remaining storage space during import and prevent file upload if not enough space is remaining

Fix #809: Added admin options to disable login for users, ensure related content is deleted when deleting a user account

- use non_field_errors struct when writing duplicate track errors
- generalize frontend error handler and update frontend error parsing