Move lsp config to local file structure

.config/nvim/lsp/mojo.lua

@@ -0,0 +1,14 @@
+---@brief
+---
+--- https://github.com/modularml/mojo
+---
+--- `mojo-lsp-server` can be installed [via Modular](https://developer.modular.com/download)
+---
+--- Mojo is a new programming language that bridges the gap between research and production by combining Python syntax and ecosystem with systems programming and metaprogramming features.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'mojo-lsp-server' },
+  filetypes = { 'mojo' },
+  root_markers = { '.git' },
+}