feat: add keymap for yanking to system clipboard

lua/plugins/lsp.lua

@@ -73,6 +73,10 @@ return {
         capabilities = capabilities,
       })
 
+      lspconfig.lemminx.setup({
+        capabilities = capabilities,
+      })
+
       vim.api.nvim_create_autocmd("LspAttach", {
         group = vim.api.nvim_create_augroup("UserLspConfig", {}),
         callback = function(ev)