Log Message:
Update gwenview to 1.1.8 from maintainer Ian Zagorskih in PR pkg/28936.

Version 1.1.8 has been released. Thanks to the hard work of Lubos Lunak,
this new version can play MNG and GIF animations!
Here is the complete list of changes:
New features:
* Zoom actions added to both KPart's.
* Support for animated pictures.
* Fast image scaling function from Imlib2/Mosfet (select 'fast' smoothing
  in the configuration dialog).
* Added an item in the "Windows" menu to reset the window layout to the
  default configuration.
Fixes:
* "Lock zoom"/"Auto zoom" options fixed.
* Fixed "Clear location"/"Location" shortcuts.
* Make it impossible to undock the file view. It should be easier for new
  users to use it this way.
* Fixed crash which could occur when copying multiple files.