[mod] unsplash engine - activated by default

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/settings.yml

@@ -1040,7 +1040,6 @@ engines:
 
   - name : unsplash
     engine : unsplash
-    disabled: True
     shortcut : us
 
   - name : yahoo