[TASK] Avoid int-casting of TSFE->type

Since Site Handling was introduced in TYPO3 v9,
TSFE->type is always set in the constructor and cast
to "int".

The "$TSFE->type" property is not itself marked as "int"
type as there might be more usages to "type" in future
v12 iterations.

Resolves: #96967
Releases: main
Change-Id: Ica26df81a9c7b554b5d27f9a6a46d68e467f0902
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73601


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Oliver Bartsch <bo@cedev.de>