Align documentation structure with updated TRG 1

[evegufy]

Description

To enhance the consistency and ease of understanding of our products for the open community, TRG 1 was updated. Make sure to comply with the updated structure:

repository
└─── docs/
    └─── architecture/
    └─── admin/
    └─── user/
    └─── api/
    └─── README.md

Please TRG 1.05-1.08 for more information: https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-05 https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-06 https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-07 https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-08 --> relates to https://github.com/eclipse-tractusx/sig-release/issues/804

Impact

Affects all products

[MaximilianHauer]

Subissues:

• https://github.com/eclipse-tractusx/portal-assets/issues/400
• https://github.com/eclipse-tractusx/policy-hub/issues/197
• https://github.com/eclipse-tractusx/portal-iam/issues/187
• https://github.com/eclipse-tractusx/portal-shared-components/issues/315
• https://github.com/eclipse-tractusx/ssi-authority-schema-registry/issues/58
• https://github.com/eclipse-tractusx/ssi-credential-issuer/issues/247