`@sapui5/ts-types-esm` - split `sap.ui.core.d.ts` into separate files

[DetachHead]

currently, sap.ui.core.d.ts is almost 70,000 lines long. this causes my PC to regularly slow down and my IDE often freezes when navigating to / searching for types defined in this file. it would be nice if they were split into separate files, perhaps per module

[akudev]

Understood... but there are up- and downsides: having more files, especially without clear mapping to libraries, means having less of an overview and it gets harder to find something when one first has to know which file to search.