Feat/map2

[oskarrough]

This PR adds a dynamic, dare I say procedural, map. It is flexible in size, responsive in layout and has drawn paths on top using SVG.

1. A function createGraph that creates a 2d array. This will have to be somehow merged into our Dungeon.
2. A <slay-map> custom element that renders this graph as a map AND draws the paths on top

Currently everything is in index.html, because that page has livereload... We need to

• move from index.html to map overlay
• remove accidental changes to tests/{game/dungeon}
• find a way to integrate it with the game logic/dungeon
• implement logic that allows you to select a path
• probably many more things...
• the svg paths are not "responsive" like the map, so when you resize the window nothing fits anymore. Need to either make it responsive or some resize observer that updates the path

Closes #28