Move lsp config to local file structure

.config/nvim/lsp/pbls.lua

@@ -0,0 +1,19 @@
+---@brief
+---
+--- https://git.sr.ht/~rrc/pbls
+---
+--- Prerequisites: Ensure protoc is on your $PATH.
+---
+--- `pbls` can be installed via `cargo install`:
+--- ```sh
+--- cargo install --git https://git.sr.ht/~rrc/pbls
+--- ```
+---
+--- pbls is a Language Server for protobuf
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'pbls' },
+  filetypes = { 'proto' },
+  root_markers = { '.pbls.toml', '.git' },
+}