Log Message:
snac: update to 2.59. Changes:

Added post drafts: new or edit post edition dialogs include a checkbox
that will cause the message to not be posted, but stored in a list of
drafts, directly accessible from the private timeline. From that list,
drafts can be edited and definitely posted (or re-stored as a draft for
later editing).

Fixed a bug that caused `Block` notifications to not be shown properly.

Fixed crash in a corner case of the URL parameter parsing code.