Refactor project categories

[jerboa88]

Tasks:

• There are a large number of project categories used and they have varying degrees of specificity. Some project categories have a language included like Node.js Module, but languages should be shown in language tags only for consistency and to save space. Rename project categories to be as broad as possible like so:

  • App
  • Container
  • Document
  • Extension
  • Library
  • Other
  • Plugin
  • Script
  • Website

  If a category alone is not specific enough to describe the project, the specific type should be specified in the project description. For example, a project with category App may have a description of This Android app does x.... This will:

  • make badge colors on READMEs and project pages more meaningful
  • make it easier to manage badges on READMEs
  • reduce the chance of overflow on project cards

• Save category badge images from https://shields.io for each possible project category and upload them to the site. This way, we don't need to manually set the badge labels and colors in the READMEs of each GitHub repo.