[FEATURE] Updating identifiers on the field TSconfig of copied pages

[stigfaerch]

As identifiers can be updated when sys_template record is copied, this should also be possible for the TSconfig field of pages.

[Oktopuce]

Yes it an interesting feature, will look at your PR.

[stigfaerch]

Hello @Oktopuce
Can you have a look at the PR?
Thanks :-)

[Oktopuce]

Hello Stig,
Will have a look when I have time.
Need time to review your PR and test it on TYPO3 V12 and V13.