issue #266 Error when opening Go files

lua/navigator/lspclient/clients_default.lua

@@ -92,12 +92,17 @@ M.defaults = function()
           and not client.server_capabilities.semanticTokensProvider
         then
           local semantic = client.config.capabilities.textDocument.semanticTokens
+          if semantic then
             client.server_capabilities.semanticTokensProvider = {
               full = true,
-            legend = { tokenModifiers = semantic.tokenModifiers, tokenTypes = semantic.tokenTypes },
+              legend = {
+                tokenModifiers = semantic.tokenModifiers,
+                tokenTypes = semantic.tokenTypes,
+              },
               range = true,
             }
           end
+        end
       end,
       root_dir = function(fname)
         return util.root_pattern('go.mod', '.git')(fname) or util.path.dirname(fname)