'Delete emails from server' was an experimental ad-hoc function
that was added before 'Automatically delete old messages' was introduced
to allow at least some way to cleanup.
'Delete emails from server'-UI was already removed from android/ios in june
(see https://github.com/deltachat/deltachat-android/pull/1406)
and the function never exists on desktop at all.
in general, Viewtypes other than File should be used only
when the added file type is tested on all platforms -
including Android4 currently.
as this is easily overseen,
i've added a comment.
this partly reverts Viewtype changes done by
https://github.com/deltachat/deltachat-core-rust/pull/1818
.tgs files are Telegram stickers. Internally they are gzipped JSON files,
containing a single Lottie animation.
MIME type application/x-tgsticker is commonly used for telegram documents
containing such stickers.
this pr allows prefixing custom jitsi urls with `jitsi:`
so that clients have a chance to detect these custom instances
and may start the corresponding app.
Now MarkseenMsgOnImap sends MDN even if it can't mark the message as
seen on the server.
To prevent multiple MDNs from being sent, MarkseenMsgOnImap is postponed
until the message is detected in a folder from which it is not going to
be moved.
This tidies up our testing tools a little bit. We had several
functions which through various changes ended up doing the same and
some more which did very similar stuff, so I merged them to have
things simpler. Also moved towards methods on the TestContext struct
while cleaning this up anyway, seems like this structure is going to
stay around for a bit anyway.
The intersting change is in `test_utils.rs`, everything else is just
updating callers. A few tests used example.org which I moved to
example.com to be able to re-use more configuration of the test
context.
