chore(tazjin/emacs): add tree-sitter grammar for typescript

Had to fix some stuff in a typescript project, it's better with highlighting.

Change-Id: I984540a791167427acde3494182521b8839aed6d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12069
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

users/tazjin/emacs/default.nix

@@ -41,6 +41,7 @@ pkgs.makeOverridable
       tree-sitter-rust
       tree-sitter-sql
       tree-sitter-toml
+      tree-sitter-typescript
       tree-sitter-yaml
     ]);