capabilities default. based on cmp nvim-lsp suggestions

lua/navigator/diagnostics.lua

@@ -204,6 +204,7 @@ M.show_diagnostic = function()
   end
 end
 
+-- set quickfix win
 M.set_diag_loclist = function()
   if not vim.tbl_isempty(vim.lsp.buf_get_clients(0)) then
     local err_cnt = vim.lsp.diagnostic.get_count(0, [[Error]])

lua/navigator/lspclient/clients.lua

@@ -311,6 +311,15 @@ local function wait_lsp_startup(ft, retry, user_lsp_opts)
   local loaded = {}
   local capabilities = vim.lsp.protocol.make_client_capabilities()
   capabilities.textDocument.completion.completionItem.snippetSupport = true
+  capabilities.textDocument.completion.completionItem.preselectSupport = true
+  capabilities.textDocument.completion.completionItem.insertReplaceSupport = true
+  capabilities.textDocument.completion.completionItem.labelDetailsSupport = true
+  capabilities.textDocument.completion.completionItem.deprecatedSupport = true
+  capabilities.textDocument.completion.completionItem.commitCharactersSupport = true
+  capabilities.textDocument.completion.completionItem.tagSupport = {valueSet = {1}}
+  capabilities.textDocument.completion.completionItem.resolveSupport = {
+    properties = {'documentation', 'detail', 'additionalTextEdits'}
+  }
 
   for _, client in ipairs(clients) do
     if client ~= nil then