Interactive Repo Visualizer and private repos

[lmakarov]

This is a follow up to #20.

The Interactive Repo Visualizer tool is superior to the static SVG generation option.

It will be great to have it either open-sourced, released as part of the repo Insights (tab) on GitHub, or at least add official support for accessing private repos.

---

In the mean time, here are the instructions to get the current tool working with private repos:

1. Go to https://github.com/settings/tokens

2. Generate a new PAT with repo permissions

3. Go to https://mango-dune-07a8b7110.1.azurestaticapps.net/

4. Add the following code to the JS console replacing TOKEN with your GitHub PAT

   window.originalFetch = window.fetch;
   const modifiedFetch = (resource, init) => window.originalFetch(resource, { ...init, headers: { "Authorization": "Bearer 
   TOKEN" } });
   window.fetch = modifiedFetch;

5. In the repository input, type any repository (public or private)

Kudos to @filipegiusti for posting the original instructions for private repo support.

[odigity]

I didn't realize it doesn't work with private repos. I spent half an hour trying to figure out why the job would suddenly stop showing up in the PR status just from adding uses: githubocto/repo-visualizer. I wish GitHub would have given me some kind of error instead of just having the job not appear as if it doesn't exist.