Using deprecated `lspconfig.tailwindcss.setup(conf)`

[garrett-hopper]

Describe the bug
neovim/nvim-lspconfig/README.md#L39

nvim-lspconfig only provides configs now and vim.lsp.enable() should be used instead, and the config should be passed to vim.lsp.config().

An additional benefit of this is that it prevents multiple LSP servers from being configured. mason-lspconfig.nvim automatically calls vim.lsp.enable() for LSP servers it installs, which currently results in 2 separate tailwind LSP servers being configured. (One with the lspconfig defaults and one with tailwind-tools.nvim's config.) I believe working around this in a user's config would require server.override = false and also manually setting up the configuration tailwind-tools.nvim would otherwise do. Using vim.lsp.config instead should prevent this.

[garrett-hopper]

root_dir also now takes bufnr as its first argument (as of neovim/commit/debabaf8)

nvim-lspconfig has the opposite order, but only for setup. (lspconfig/configs.lua#L24-L24)