* crash-reporting: say whether the main window was hung or blank when its renderer died
Windows killed/exit-1 renderer reports read the same whether Task Manager, an
EDR, or Orca ended the process. Field bundles show several of them follow
minutes of renderer silence or a document that never loaded after an update,
which points at users ending a frozen Orca. Record Electron's
unresponsive/responsive transitions as durable breadcrumbs and attach
rendererUnresponsiveForMs, rendererDocumentLoaded, rendererDocumentAgeMs and the
window's visible/minimized/hidden + focus state to the renderer crash details.
* fix(crash-reporting): a failed load reads as a blank window, and a crash ends the hang
Electron fires did-finish-load after did-fail-load, and a failed load never
commits, so track from did-start-navigation and flag main-frame load failures.
Clear the hang at renderer death so the replacement renderer's responsive is not
logged as the dead one recovering.
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Co-authored-by: m4air <m4air@Mac.localdomain>