It should no longer be necessary to explicitly add capabilities to a server's configuration

Since https://github.com/neovim/neovim/pull/13294 neovim [includes](https://github.com/neovim/neovim/blob/3c3f3e7353ba2cb9071183cd05036ca2a98d3672/runtime/lua/vim/lsp/protocol.lua#L774) `window/workDoneProgress` in the capabilities table created by `make_client_capabilities`, so it should no longer be necessary to explicitly add it to a server's configuration.