Related: rhbz#1715109 'All formats->All images'

because it lists just image formats, not all formats.

"image" is what seems to be the word of the moment for graphics/pictures/etc so
use that

Change-Id: I85c8abd11a121ce000f2850857a967fada11e809
Reviewed-on: https://gerrit.libreoffice.org/73275
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

include/sfx2/strings.hrc

@@ -186,7 +186,7 @@
 #define STR_SFX_EXPLORERFILE_EXPORT             NC_("STR_SFX_EXPLORERFILE_EXPORT", "Export")
 #define STR_SFX_EXPLORERFILE_INSERT             NC_("STR_SFX_EXPLORERFILE_INSERT", "Insert")
 #define STR_SFX_EXPLORERFILE_BUTTONINSERT       NC_("STR_SFX_EXPLORERFILE_BUTTONINSERT", "~Insert")
-#define STR_SFX_IMPORT_ALL                      NC_("STR_SFX_IMPORT_ALL", "<All formats>")
+#define STR_SFX_IMPORT_ALL_IMAGES               NC_("STR_SFX_IMPORT_ALL_IMAGES", "<All images>")
 #define STR_PB_SAVEACOPY                        NC_("STR_PB_SAVEACOPY", "Save a Copy")
 #define STR_PB_COMPAREDOC                       NC_("STR_PB_COMPAREDOC", "Compare to")
 #define STR_PB_MERGEDOC                         NC_("STR_PB_MERGEDOC", "Merge with")

sfx2/source/dialog/filedlghelper.cxx

@@ -1897,7 +1897,7 @@ void FileDialogHelper_Impl::addGraphicFilter()
 
     try
     {
-        OUString aAllFilterName = SfxResId( STR_SFX_IMPORT_ALL );
+        OUString aAllFilterName = SfxResId(STR_SFX_IMPORT_ALL_IMAGES);
         aAllFilterName = ::sfx2::addExtension( aAllFilterName, aExtensions, bIsInOpenMode, *this );
 
         xFltMgr->appendFilter( aAllFilterName, aExtensions );