This script allows to arrange mastodon web components on a 2*5 grid (with CSS grid).
You can drag & drop to move the components and resize them on the grid.
Your browser needs to suport CSS grid.
Works only with TamperMonkey
For now I don't know why it doesn't work with GreaseMonkey.
Tested on firefox & chromium.
Replace 'example.com' lines 7 & 8 with the domain of the instance you use.