docs(todo): remove pterosaur
docs(todo): remove pterosaur

Because it is no longer maintained [1]. Copy pasted:

> Note: THIS PROJECT IS NO LONGER MAINTAINED
>
> Due to the rules of my new employer, I likely won't be able to
> continue contributing to or maintaining Pterosaur as a Firefox addon
> for the foreseeable future. Pterosaur works through Firefox 38, which
> should be in ESR until mid-2016. Hopefully, I will have made a
> Chromium version well before then. I apologize to everybody whose
> workflow will be disrupted. Pterosaur is free software. There is
> nothing stopping you from forking it.

[1]: https://github.com/ardagnir/pterosaur

vyp/ui,vyp/etsi