Umbrella issue for metrics v4

[lowlighter]

Followup of:

• refactor: v4 #1542

Below is the list of identified missing features or bugs that is related to metrics v4
Items that are already linked to an issue are referenced directly in the code at the revelant places

• Engine
  • Support conditionals execution (c.f. API quotas and image hash comparison)
    • Possibly support loops ?
• Utils
  • Support advanced filtering options for matchPatterns() (such as stars, followers, etc.)
  • Implement a language guesser that doesn't rely directly on the filesystem and that is deno compliant
  • Change logs: none to logs: false
  • Support world graphs (c.f. stargazers plugin)
  • Support recording web pages as gifs (c.f. skyline plugin)
• Features
  • Support markdown and insights outputs #1574
• Web UI
  • Support mobile devices on web version #1572
  • Support limiting available plugins and options from config files for deployed instances (and inform users on the web app) #1576
  • Create additional presets directly from the web UI
    • Offer to publish users presets and reuse them kind like a marketplace ?
  • CSS styling (need some rework because they were made on a yellowed-screen which fucked up the colors)
  • Support drag and drop to change orders of plugins and processors
  • Add a button to clone plugins/processors
  • Support editing the raw YAML snippet and sync them back to the HTML inputs
• Documentation
  • Contribution guidelines
  • Readme
  • End-user documentation
  • Developer documentation
• Testing
  • Parallel testing to enable in deno.jsonc
  • Enable Browser tests again (issue with some promise resolution)
  • Patch Deno.test permissions for --allow-run  #1571
  • Route the dev environment variable when in a preview environment (like localhost / deploy preview) #1575
• Deployments
  • Support vercel deno
  • Add deploy helper to the cli
  • Rework CI pipeline