Move lsp config to local file structure

.config/nvim/lsp/basics_ls.lua

@@ -0,0 +1,27 @@
+---@brief
+---
+--- https://github.com/antonk52/basics-language-server/
+---
+--- Buffer, path, and snippet completion
+---
+--- ```sh
+--- npm install -g basics-language-server
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'basics-language-server' },
+  settings = {
+    buffer = {
+      enable = true,
+      minCompletionLength = 4,
+    },
+    path = {
+      enable = true,
+    },
+    snippet = {
+      enable = false,
+      sources = {},
+    },
+  },
+}