Move lsp config to local file structure

.config/nvim/lsp/pyre.lua

@@ -0,0 +1,17 @@
+---@brief
+---
+--- https://pyre-check.org/
+---
+--- `pyre` a static type checker for Python 3.
+---
+--- `pyre` offers an extremely limited featureset. It currently only supports diagnostics,
+--- which are triggered on save.
+---
+--- Do not report issues for missing features in `pyre` to `lspconfig`.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'pyre', 'persistent' },
+  filetypes = { 'python' },
+  root_markers = { '.pyre_configuration' },
+}