Extend the window size after the tabbedSelectorSectionEnabled flag
is already set to true. Otherwise we extend the window and switch
to a normal from single column layout before showing the sidebar.
A lot of people didn't know how to bring the dialogs column back
after it was gone in a wide single column MainWindow.
Now we switch to a two column layout if the window allows it,
preserving the emoji / stickers / GIFs section in case it is shown.
When the mouse was over edit / reply and the history was closed,
mouse click handler still tried to jump to the message. Now we
update the mouse over state each time the history changes.
HistoryWidget::resizeEvent() can start taking TabbedSelector from
TabbedPanel which will call QWidget::render() which can call again
HistoryWidget::resizeEvent() from sendPendingMoveAndResizeEvents().
Use a separate flag for _tabbedSection to prevent recursion there.
GIFs get paused if some other layer is displayed above.
Media preview > Box or layer > Saved GIFs panel > Inline bot results.
If any of those is displayed, GIFs inside message history pause too.
Server has some extensions checking for inputMediaUploadedPhoto,
so force the extension to be .jpg anyway. It doesn't matter,
because the filename from inputFile is not used anywhere.
Also own PhotoData::UploadingData through std::unique_ptr.
Read media information (image / song / video) in SendFileBox in the
same way it is read in FileLoadTask::process() and reuse it in
FileLoadTask if it was loaded already for the box.
Currently the build without implicitly included precompiled header
is not supported anyway (because Qt MOC source files do not include
stdafx.h, they include plain headers).
So when we decide to support building without implicitly included
precompiled headers we'll have to fix all the headers anyway.
Some major platform-dependent file operations refactoring.
All methods like "open file", "open file with", "show in folder"
were moved to core/file_utilities module with platform-dependent
backends. All methods interacting with DesktopServices made async.
Now each platform-dependent module declares its interface in
platform/platform_module.h file and after that includes platform-
specific headers like platform/win/module_win.h with implementation.
Also removed the legacy WinRT platform-dependent implementations.
