Start replacing some bmo commands with pybmo rewrite

dotfiles/config/bmo/menu.ini

 [menu._default_]
-    selector    = bmo dmenu
+    selector    = pybmo dmenu
 
 [menu.def.uris]
-    generator   = bmo conf -j -r . wish.ini
+    generator   = pybmo conf -j -c wish.ini
     selector_args = -l 20 --split =
     consumer    = bmo wish -f
 
     consumer    = bash -
 
 [menu.def.query]
-    generator   = bmo conf -j -r wish.query.
+    generator   = pybmo conf -j -s wish.query
     selector_args = -l 20 --split = --split-field 1
     consumer    = cat