Move lsp config to local file structure

.config/nvim/lsp/superhtml.lua

@@ -0,0 +1,24 @@
+---@brief
+---
+--- https://github.com/kristoff-it/superhtml
+---
+--- HTML Language Server & Templating Language Library
+---
+--- This LSP is designed to tightly adhere to the HTML spec as well as enforcing
+--- some additional rules that ensure HTML clarity.
+---
+--- If you want to disable HTML support for another HTML LSP, add the following
+--- to your configuration:
+---
+--- ```lua
+--- vim.lsp.config('superhtml', {
+---   filetypes = { 'superhtml' }
+--- })
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'superhtml', 'lsp' },
+  filetypes = { 'superhtml', 'html' },
+  root_markers = { '.git' },
+}