[FEATURE] Use of TYPO3 modals instead of JavaScript alerts

[ErHaWeb]

Currently, JavaScript alerts are issued when the Save, Remove all connection information and Delete superfluous record buttons in the TransFusion Connector are clicked.

It would be nice if the TYPO3 modals could also be used in these places. This could look like this, for example:

[Bunnyfield]

This will be a new feature in the "next level" coming in Q2 2024