[LSP] Fix texlab config

nvim/lua/plugins/lsp/lspconfig.lua

@@ -162,11 +162,8 @@ return {
         -- │                     LaTeX                     │
         -- └                                               ┘
         lsp.config("texlab", {
-			cmd = { "texlab" },
+            capabilities = capabilities,
-			filetypes = { "tex", "latex", "bib" },
+            on_attach = on_attach,
-			root_dir = function(fname)
-				return vim.loop.cwd()
-			end,
         })
 
         -- ┌                                               ┐