fdo#75487 Register svgz as a recognisable extension.

Change-Id: If4b5d6a38b468e5412dd973547cbcd580a83e239

filter/source/config/fragments/types/svg_Scalable_Vector_Graphics.xcu

@@ -18,7 +18,7 @@
     <node oor:name="svg_Scalable_Vector_Graphics" oor:op="replace" >
         <prop oor:name="DetectService"><value>com.sun.star.comp.Draw.SVGFilter</value></prop>
         <prop oor:name="URLPattern"/>
-        <prop oor:name="Extensions"><value>svg</value></prop>
+        <prop oor:name="Extensions"><value>svg svgz</value></prop>
         <prop oor:name="MediaType"><value>image/svg+xml</value></prop>
         <prop oor:name="Preferred"><value>true</value></prop>
         <prop oor:name="PreferredFilter"><value>SVG - Scalable Vector Graphics</value></prop>