The Qt Widgets Application example was moved to manual tests,
and no longer contains the snippet identifiers. Fix \snippet
and \quotefile commands to quote similar code snippets from
other examples or snippet files.
Fix also the following documentation warnings:
* No such parameter 'parsingMode' in QUrl::fromEncoded()
* Missing image: rsslisting.cpp
Change-Id: Ibc989e83abc49837db08628facaf8e5f72b2f123
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 17ddf2a6a52bab5d406bea560591961a7527929b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
2e55a34c1c