Add community plugin registry

[ihadeed]

This is more of a proposal than a PR that's ready for merge

I copied some of the functionality used to render docs to create a dedicated community plugins registry.

The other piece of the puzzle here would be a CI/CD pipeline to collect metadata from each plugin's package.json (or custom json) and generate a list of PluginInfo objects.

1. query capacitor-community org via Github API
2. download package.json file from the repo (using the raw file URL)
3. parse json and extract/compute the info above
4. send that info to prismic, or save it as a static .json file in this repo
5. generate markdown docs using capacitor-docgen and add it to pages/community/<plugin slug>.md in this repo

Change summary

• community-component component renders the docs (diff)
• community-menu displays a different logo, filtering options in sidebar, displays plugins based on their category, and indexes them by tags for search (diff)
• added a temporary card in the current community page as a way to navigate to the registry (diff)

Screenshots

Community plugins group replaces "Community plugins" under "Getting started" and introduces a registry link

Added this while testing a few things initially and I left it there. It's not a major part of this proposal.

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Main registry page to view plugins organized as cards with ability to search/filter. Thought this might look/function like Terraform Registry or Drone Plugin Registry.

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Example of what a plugin docs page looks like

[vercel]

@ihadeed is attempting to deploy a commit to the Ionic Team on Vercel.

A member of the Team first needs to authorize it.

[perrygovier]

Thank you!!!
@bensperry has some UI updates he wants me to make. I should be able to get those in and this merged in the first week of December.