Allow for custom props to pass to category cards

[jwitz]

Issue Type

Issue with website functionality

Links to Affected Docs

https://docs.astronomer.io/learn/category/integrations

The Issue or Context

We need a way to customize the logos for category cards in addition to individual page cards. This would likely take the form of including the images as a custom prop in the sidebars.js file where the category is defined.

Fix or Proposed Change

No response

Additional Notes

No response

Required Reviewers

No response