feat: speed up directory traversal with fd (list command)

This typically prevents going into the `.git` directory when matching on
`.git`, thus making traversal faster.

lua/telescope/_extensions/repo/list.lua

@@ -17,7 +17,7 @@ M.prepare_command = function(opts)
 
     -- Don’t filter only on directories with fd as git worktrees actually have a
     -- .git file in them.
-    local find_repo_opts = { "--hidden", "--case-sensitive", "--absolute-path" }
+    local find_repo_opts = { "--prune", "--hidden", "--case-sensitive", "--absolute-path" }
     local find_user_opts = opts.fd_opts or {}
     local find_exec_opts = opts.fd_exec_opts or (function()
         if vim.fn.has("win32") == 1 or vim.fn.has("win64") == 1 then