VSCode and typescript still do not understand assignments to window as
introducing of a global name. To make them happy, use assignment to
globalThis.

The SlaveSummary function was a long-long sheet of if's and it was
practically unmaintainable. Refactor it into a list of rendering
delgates, where delegates are set once and called without branching.

Now we set delegates for each summary render call, but it can be done
on game start and game loading.

Sync