MkDocs: current example engine provides unrelated examples

[Alex2772]

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What happened?

Some entities (notably, macros) have unrelated examples. (In most cases, they are pointing to AUI_DECLARATIVE_FOR)

https://aui-framework.github.io/develop/aui_with_style/?h=aui_with

Relevant log output or stack trace

Steps to reproduce

1. Open docs.
2. Find macros examples

Affected Platforms

No response

Link to build, i.e. failing GitHub Action job (if any).

https://aui-framework.github.io/develop/aui_with_style/