helix: Add texlab LSP. Additional config.

roles/home/helix.nix

@@ -9,6 +9,20 @@
 
     file.".config/helix/config.toml".text = ''
       theme = "monokai"
+
+      [editor]
+      cursorline = true
+
+      [editor.cursor-shape]
+      insert = "bar"
+      normal = "block"
+      select = "underline"
+
+      [editor.lsp]
+      display-messages = true
+
+      [editor.indent-guides]
+      render = true
     '';
 
     packages = with pkgs.unstable; [
@@ -17,6 +31,7 @@
       rust-analyzer
       rnix-lsp
       python310Packages.python-lsp-server
+      texlab
     ];
   };
 }