Feature: Investigate Spotify Portal

[OneCricketeer]

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Problem Statement

Portal is marketed as "Backstage in a box" and a "low code" integrated Backstage environment.

There's an existing Docker image for it, etc.

https://backstage.spotify.com/products/portal/

Possible Solution

Idpbuilder could hand off more of the Backstage setup / components to Spotify.

Alternatives Considered

No response