feat(emacs-tree-sitter-move): load more than one tree sitter grammar

Change-Id: I43b8ddb180c056f1b8c650ccc915ec41bae83960
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2262
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI

users/Profpatsch/emacs-tree-sitter-move/tree-sitter-move.el

@@ -15,6 +15,7 @@
 (defun tree-sitter-move--setup ()
   ;; TODO
   (progn
+    ;; TODO: if tree-sitter-mode fails to load, display a better error
     (tree-sitter-mode t)
     (setq tree-sitter-move--cursor (tsc-root-node tree-sitter-tree))
     (add-variable-watcher