Added image/webp to tdehtmlimage's list of supported formats

Signed-off-by: Alex Kent Hajnal <software@alephnull.net>
(cherry picked from commit 1d92d8747b)

tdehtml/tdehtmlimage.desktop

@@ -2,7 +2,7 @@
 Type=Service
 Name=Embeddable Image Viewer
 Comment=Embeddable Image Viewing Component
-MimeType=image/gif;image/x-xpm;image/x-xbm;image/jpeg;image/x-bmp;image/png;image/x-jng;image/x-ico;image/x-portable-bitmap;image/x-portable-pixmap;image/x-portable-greymap;image/tiff;video/x-mng;image/x-targa;
+MimeType=image/gif;image/x-xpm;image/x-xbm;image/jpeg;image/x-bmp;image/png;image/webp;image/x-jng;image/x-ico;image/x-portable-bitmap;image/x-portable-pixmap;image/x-portable-greymap;image/tiff;video/x-mng;image/x-targa;
 X-TDE-ServiceTypes=KParts/ReadOnlyPart,Browser/View
 X-TDE-Library=tdehtmlimagepart
 X-TDE-InitialPreference=4