String interpolation highlighting

[sachinraja]

Environment

• Elixir & Erlang versions (elixir --version): Erlang/OTP 23 [erts-11.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [hipe] Elixir 1.11.4 (compiled with Erlang/OTP 23)
• VSCode ElixirLS version: 0.7.0
• Operating System Version: linux 5.8.0-50-generic

Syntax highlighting does not work for string interpolation:

I do not get documentation when hovering over the functions inside string interpolation.

I also find it a bit strange that the parentheses are properly colored (purple).

If this issue is a better fit for elixir-lsp/elixir-ls, just let me know and I'll post it there.

Lists are, however, highlighted properly:

[lukaszsamson]

Fix will be released in the upcoming version