[TASK] Make LinkPopup popup larger

Especially if setting links to records, the default size
of the popup is just too small. Change it to 1000 px width.

Resolves: #79702
Releases: master
Change-Id: I63f0837b6fd53d74c4686822ab4d1c8618961454
Reviewed-on: https://review.typo3.org/51603


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Nicole Cordes <typo3@cordes.co>
Tested-by: Nicole Cordes <typo3@cordes.co>
Reviewed-by: Josef Glatz <josef.glatz@typo3.org>
Tested-by: Josef Glatz <josef.glatz@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>