"WHY" overlay on the homepage

[peartobear]

Create an overlay square box with overlay similar to this
When user clicks on "WHY" on homepage of boltz, that box should appear with the content as follows:

On 4th of September 2018, In a [blogpost](https://info.shapeshift.io/blog/2018/09/04/introducing-shapeshift-membership/), Shapeshift, one of the largest cryptocurrency entities, scummed to user data collection. By creating an account on a custodial exchange like Shapeshift, you are giving government and anyone who can access that KYC data, the power to not only know that you have crypto assets but confiscate them during a trade. We built Boltz with a dream of a fairer financial world, with a primary goal to empower users with financial sovereignty. Therefore, Boltz does not and will never collect any personal data from users. Also, Boltz leverages advanced cryptography ("atomic swaps") in a way, so that trades either complete in full or get refunded automatically. Users can rest assured to be in possession of their funds at all times, without worrying about who is behind Boltz and if this entity is trustworthy

Because trading shouldn't require an account.