Move lsp config to local file structure

.config/nvim/lsp/pyrefly.lua

@@ -0,0 +1,26 @@
+---@brief
+---
+--- https://pyrefly.org/
+---
+---`pyrefly`, a faster Python type checker written in Rust.
+--
+-- `pyrefly` is still in development, so please report any errors to
+-- our issues page at https://github.com/facebook/pyrefly/issues.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'pyrefly', 'lsp' },
+  filetypes = { 'python' },
+  root_markers = {
+    'pyrefly.toml',
+    'pyproject.toml',
+    'setup.py',
+    'setup.cfg',
+    'requirements.txt',
+    'Pipfile',
+    '.git',
+  },
+  on_exit = function(code, _, _)
+    vim.notify('Closing Pyrefly LSP exited with code: ' .. code, vim.log.levels.INFO)
+  end,
+}