feat nvim: 建立lspconfig整體架構

已參考mason, lspconfig, cmp官方範例，並反覆問GPT並手動對照後，已手動融合設定

dot_config/nvim/exact_lua/lsp/exact_config/lspconfig.lua

@@ -0,0 +1,31 @@
+local lspconfig = require("lspconfig")
+local capabilities = require("cmp_nvim_lsp").default_capabilities()
+
+local on_attach = function(_, bufnr)
+  local map = function(mode, lhs, rhs)
+    vim.keymap.set(mode, lhs, rhs, { buffer = bufnr })
+  end
+  map("n", "gd", vim.lsp.buf.definition)
+  map("n", "K", vim.lsp.buf.hover)
+end
+
+local servers = {
+  "phpactor",
+  "pyright",
+  "gopls",
+  "html",
+  "cssls",
+  -- "tsserver", -- TODO: tsserver is deprecated, use ts_ls instead.
+}
+
+-- 載入所有的對應的 LSP server 設定
+--
+-- 相關設定請看
+-- <https://github.com/neovim/nvim-lspconfig/blob/master/doc/configs.md>
+for _, name in ipairs(servers) do
+  local ok, config = pcall(require, "lsp.servers." .. name)
+  if not ok then config = {} end
+  config.capabilities = capabilities
+  config.on_attach = on_attach
+  lspconfig[name].setup(config)
+end