Sort list entries by GH stars and/or age (instead of alphabetically)

[bkimminich]

As an author of a popular and up-to-date vulnerable application I want that app to show up at the top of the relevant VWAD lists so that the lists in general represent more of a ranking than an index.

With the current implementation of grabbing the GitHub star badges only (i.e. not having the actual number of stars available during rendering) this is probably not possible. The actual number of stars needs to be retrieved in some way. This could for example be a nightly job creating a simple JSON file in the repo that could then be processed during rendering.

[bkimminich]

This User Story was inspired by https://github.com/psiinon/open-source-web-scanners, but that is a manually created list, and we probably do not want to go back that route. But what could work for VWAD might also be a solution for @psiinon's list or vice versa.