Hydra admin web dashboard

[ch1bo]

Why

TODO: detail this

• Making the first start experience of opening a head more delightful than using the hydra-tui

What

• Create or extend a web-SDK to interact with a hydra-node to adminstrate a Head instance (init, commit, close, add/remove funds, submit L2 transactions, .. ).
  • For committing, connecting a browser wallet should be possible.
• Create a simple browser based dashboard to operate a head (like TUI but in the browser).