Style the webpage

[lGrom]

Is your feature request related to a problem? Please describe.
The current UI is a disaster. It's barely even functional: end pieces all look the same, there's nothing to show you how many ships are in each row/column, and there's no indicator for ships left.

Describe the solution you'd like
A well though-out and cohesive UI should be created with options for theme, font, size, etc. It should be sure to keep accessibility in mind.