* fix: Use msg.getFilename() instead of the file's name in some cases
* fix: Use msg.getFilename() instead of the file's name in initializeDraft()
* fix: Use msg.getFilename() instead of the file's name in MediaItem
* fix: Use the correct file name in MediaView
* refactor: `msg` param of `getManuallyCalculatedSlideInfo()` was always null
* Improve comment
* Revert "refactor: `msg` param of `getManuallyCalculatedSlideInfo()` was always null"
We will unfortunately need getManuallyCalculatedSlideInfo() with `msg`
param
This reverts commit 60e8248db3.
* fix: Fix drafting images
This fixes a bug introduced in 14f69f87e8:
When you drafted an image, pressed Back, and opened the chat again, then
the height of the drafted image was wrong and tapping the image opened a
preview for the wrong image.
I do think that theoretically it would be nicer to use getSlideForMsg
here, because we already have a DcMsg, but this didn't work because a)
the width and height wasn't gotten from the msg and instead 0 was passed
and b) the code tries to save a msgId instead of the message instead,
and loading the message from the database fails later since it's just a
draft.
I didn't want to try and fix these things, because they might be bigger
refactorings and I don't know the code.
* fix: Use the original message's filemime if there is one
...instead of trying to guess the mimetype from the uri
