fix: builtin list_or_jump now handles non list replies from the server (#1101)

fix for servers such as zls and clojure_lsp

lua/telescope/builtin/lsp.lua

@@ -58,6 +58,12 @@ local function list_or_jump(action, title, opts)
   local flattened_results = {}
   for _, server_results in pairs(result) do
     if server_results.result then
+      -- textDocument/definition can return Location or Location[]
+      if not vim.tbl_islist(server_results.result) then
+        flattened_results = { server_results.result }
+        break
+      end
+
       vim.list_extend(flattened_results, server_results.result)
     end
   end