fix: leap nvim required by flit (#1046)

step to reproduce
- disable leap.nvim
- add custom config for flash (not using one from the extras)
- open file type "f", error shown "module leap is missing"

Co-authored-by: Radvil <radvil@@access-mobile.com>

lua/lazyvim/plugins/editor.lua

@@ -216,6 +216,9 @@ return {
   -- easily jump to any location and enhanced f/t motions for Leap
   {
     "ggandor/flit.nvim",
+    enabled = function()
+      return require("lazyvim.util").has("leap")
+    end,
     keys = function()
       ---@type LazyKeys[]
       local ret = {}