fix(nvim): fix broken TypeScript highlighting

By (hopefully temporarily) switching to my fork:

- https://github.com/wincent/typescript-vim

If upstream PR gets merged:

- leafgarland/typescript-vim#203

or alternative solution is implemented, I can drop the fork.

* aspects/nvim/files/.config/nvim/pack/bundle/opt/typescript-vim 31ede5a...169f678 (1):
  > fix: prefer default links except on ancient Vim versions

.gitmodules

@@ -112,7 +112,8 @@
  url = https://github.com/wincent/terminus.git
 [submodule "typescript-vim"]
  path = aspects/nvim/files/.config/nvim/pack/bundle/opt/typescript-vim
- url = https://github.com/leafgarland/typescript-vim.git
+ url = https://github.com/wincent/typescript-vim.git
+ branch = wincent
 [submodule "undotree"]
  path = aspects/nvim/files/.config/nvim/pack/bundle/opt/undotree
  url = https://github.com/mbbill/undotree.git