[TASK] Simplify IncludeTree identifier calculation

We need unique identifiers in both TypoScript
"AST" and "IncludeTree" to reference nodes in
the backend modules.

This has been established with #99537 for the
include tree already, while #99747 came with
a simplified approach for AST nodes.

The patch changes the include tree approach to
use the same simplified version as done with
AST nodes, which avoids some runtime overhead
in non-backend context.

As drive-by, the HTML of "Active PageTsConfig"
view is streamlined a bit.

Change-Id: I2d3855ef260ea23bc43aebb199dd04d12de3ac0f
Resolves: #99753
Related: #99537
Related: #99747
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77640


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>