added logarithmic rings, fixed padding of items

Item component does not use others -> atom

reworked tooltip and ditched createPortal

easier color handling via css only

unique css classes and cleanup

minor cleanup

replaced hoc with custom hook

using asdf, reworked data handling to centralized useContext store

basic first version of an item list below the tech radar

changed colors to light theme, minor restractoring with data folder

open tooltips on hover instead of click

ignore .idea phpstorm folder

added event handling, highlighting, basic page layout

Initial commit

Initialize project using Create React App