The runtime had support to detect handlebars (*.hbs) files as filetype
handlebars but was lacking any indent or syntax highlighting for that
filetype.
The handlebars syntax file is also a prerequisite for the glimmer
syntax.
Permission was granted by the original author to retrofit these into the
Vim runtime. Original License (MIT) maintained in code comments.
related: vim/vim#19569https://github.com/vim/vim/commit/99ea2b5b062edcb22ac0cd92c5ae317cc663a7ca
Co-authored-by: Devin Weaver <suki@tritarget.org>
