bworg: use Tivra's site for bisonwallet.org

[buck54321]

Tivra made this great little one-page site. I'm putting it up at bisonwallet.org for now. I'm opening the PR to give a place for people to recommend alterations.

[jzbz]

@tsunekazu It's up. Making a few notes:

• Font next to logo at in the header has some rendering issues.
• All fonts should be hosted locally, eliminate all Google links (gstatic, googleapis).
• Support link should either link to Decred support page or directly to a support channel.

[martonp]

POLY should be POL

[buck54321]

I think I've addressed everything except for @martonp's POLY find. I've got that done locally and I'll push it soon.

[jzbz]

One other small issue the life preserver icon in the support section isn't properly aligned like all the others.

[buck54321]

One other small issue the life preserver icon in the support section isn't properly aligned like all the others.

Yeah, I messed that up. I have it fixed locally. I'm thinking about removing those icons through.

[JoeGruffins]

Coin Icons look good now.

[JoeGruffins]

LGTM

[ukane-philemon]

1. The Get Bison wallet section hides the navbar during scrolls.

2. I suggest the menu dropdown should close if the user clicks outside of the menu dropdown.

3. https://github.com/decred/dcrdex/issues/3279 (This can be handled as a follow up)