Move lsp config to local file structure

.config/nvim/lsp/clarinet.lua

@@ -0,0 +1,11 @@
+---@brief
+--- https://github.com/hirosystems/clarinet
+---
+--- Clarinet is the fastest way to build, test, and deploy smart contracts on the Stacks blockchain.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'clarinet', 'lsp' },
+  filetypes = { 'clar', 'clarity' },
+  root_markers = { 'Clarinet.toml' },
+}