eex/heex file specific suggestions for if, case, cond etc.

Hey,

I have been using the atom https://github.com/elixir-editors/language-elixir package for years.
Recently I have been looking at alternative editors,and using the language server.

I noticed that in the atom package there are "context" aware snippets, while in the language server based ones there aren't.
In a .ex file you get regular if, else, case etc. and in .heex or other .eex files you get them with `<%= =>`.
From here: https://github.com/elixir-editors/language-elixir/blob/dd18b5d712044edc0a6c68fadc5aaf2ef3ed7efc/snippets/language-elixir.cson#L162

I was wondering if that is omitted here on purpose?
In every editor I tried the language server it offers the regular version in .eex files.

I looked around in the code [here](https://github.com/elixir-lsp/elixir-ls/blob/master/apps/language_server/lib/language_server/providers/completion.ex), and I see that we have special cases for `|>` for example.

Would it be possible to add the .eex variants where relevant?

Thank you