feat: updating auth and icon urls

[pixelscript]

Pull request checklist

Please check if your PR fulfills the following requirements:

• [x] Build (npm run build) was run locally and any changes were pushed
• [x] Tests (npm run test) for the changes have been added (for bug fixes / features)
• [x] Docs (npm run doc) have been reviewed and added / updated if needed (for bug fixes / features)
• [x] PR title and git commit messages conform to the conventionalcommits specification

Pull request type

Please check the type of change your PR introduces:

• [ ] Bugfix
• [x] Feature
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

What is the current behaviour?

• authUrl points to auth.adis.ws
• card icons point to `http://apps.dev-artifacts.adis.ws',

What is the new behaviour?

• authUrl now points to auth.amplience.net
• card icons now point to `bigcontent.io'

Does this introduce a breaking change?

• [ ] Yes
• [x] No

[easen-amp]

Note: https://github.com/amplience/dc-cli/ will have to updated to use this new version once, obviously once it has been released.