nvim: 添加所需要的程式語言，並把官方設定範例抄過來

dot_config/nvim/exact_lua/lsp/exact_servers/cssls.lua

@@ -0,0 +1,19 @@
+return {
+  cmd = { "vscode-css-language-server", "--stdio" },
+  filetypes = { "css", "scss", "less" },
+  init_options = {
+    provideFormatter = true
+  },
+  root_markers = { "package.json", ".git" },
+  settings = {
+    css = {
+      validate = true
+    },
+    less = {
+      validate = true
+    },
+    scss = {
+      validate = true
+    }
+  },
+}