Move lsp config to local file structure

.config/nvim/lsp/awk_ls.lua

@@ -0,0 +1,14 @@
+---@brief
+---
+--- https://github.com/Beaglefoot/awk-language-server/
+---
+--- `awk-language-server` can be installed via `npm`:
+--- ```sh
+--- npm install -g awk-language-server
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'awk-language-server' },
+  filetypes = { 'awk' },
+}