add pixiv to settings.yml

searx/settings.yml

@@ -1199,6 +1199,11 @@ engines:
     # country
     url: https://thepiratebay.org/
     timeout: 3.0
+  
+  - name: pixiv
+    shortcut: pv
+    engine: pixiv
+    disabled: true
 
   # Required dependency: psychopg2
   #  - name: postgresql