Move lsp config to local file structure

.config/nvim/lsp/bright_script.lua

@@ -0,0 +1,15 @@
+---@brief
+---
+--- https://github.com/RokuCommunity/brighterscript
+---
+--- `brightscript` can be installed via `npm`:
+--- ```sh
+--- npm install -g brighterscript
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'bsc', '--lsp', '--stdio' },
+  filetypes = { 'brs' },
+  root_markers = { 'makefile', 'Makefile', '.git' },
+}