fix(blink-cmp): "exact" fuzzy sort

Author: shimeoki

plugins/by-name/blink-cmp/settings-options.nix

@@ -443,14 +443,15 @@ in
     sorts =
       defaultNullOpts.mkListOf
         (types.enum [
+          "exact"
           "label"
           "sort_text"
           "kind"
           "score"
         ])
         [ "score" "sort_text" ]
         ''
-          Controls which sorts to use and in which order, these three are currently the only allowed options
+          Controls which sorts to use and in which order, these five are currently the only allowed options
         '';
 
     prebuilt_binaries = {