Move lsp config to local file structure

.config/nvim/lsp/lwc_ls.lua

@@ -0,0 +1,30 @@
+---@brief
+---
+--- https://github.com/forcedotcom/lightning-language-server/
+---
+--- Language server for Lightning Web Components.
+---
+--- For manual installation, utilize the official [NPM package](https://www.npmjs.com/package/@salesforce/lwc-language-server).
+--- Then, configure `cmd` to run the Node script at the unpacked location:
+---
+--- ```lua
+--- vim.lsp.config('lwc_ls', {
+---   cmd = {
+---     'node',
+---     '/path/to/node_modules/@salesforce/lwc-language-server/bin/lwc-language-server.js',
+---     '--stdio'
+---   }
+--- })
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'lwc-language-server', '--stdio' },
+  filetypes = { 'javascript', 'html' },
+  root_markers = { 'sfdx-project.json' },
+  init_options = {
+    embeddedLanguages = {
+      javascript = true,
+    },
+  },
+}