phosit 094a7c2268 Return a promise from most page-inits ...

Adopt the new interface by all pages which close themself. (Not thous
using `Engine.SwitchGuiPage`.)

2025-03-09 10:39:20 +01:00

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data

Return a promise from most page-inits

2025-03-09 10:39:20 +01:00

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