Upgrade to Dart 3 (Flutter 3?) and packages to latest major versions#7

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needlesslygrim wants to merge 2 commits intoSCIEDEV:mainfrom

needlesslygrim:dart3

Commits on Jun 23, 2024

Upgrade to Dart 3 (Flutter 3?) and packages to latest major versions
needlesslygrim
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Update more core to Dart 3 ( mostly switching to Iterable.indexed )
needlesslygrim
committed