Move lsp config to local file structure

.config/nvim/lsp/vale_ls.lua

@@ -0,0 +1,12 @@
+---@brief
+---
+--- https://github.com/errata-ai/vale-ls
+---
+--- An implementation of the Language Server Protocol (LSP) for the Vale command-line tool.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'vale-ls' },
+  filetypes = { 'asciidoc', 'markdown', 'text', 'tex', 'rst', 'html', 'xml' },
+  root_markers = { '.vale.ini' },
+}