Rework dependencies

Feature suggesstion:

The dependencies webpage is hard to maintain. Instead, I suggest the following:

I propose instead to auto-paste in the ROOT webpage the packages listed in the root-docker image packages file, by using js:

https://stackoverflow.com/questions/71484264/can-you-get-the-content-of-a-github-file-with-javascript

or to just point/link to the github ci images.