Batch of safe, isolated fixes from the 10-surface UX audit:
- settings: Auto-shield / Save-z-transactions toggles now persist on change
(they discarded CB()'s return and relied on a Save button that only renders
on the About tab, so the choice was silently lost on relaunch).
- exports: show the resolved Platform::getConfigDir() instead of a hardcoded
~/.config path (wrong on Windows/macOS) in both the all-keys and CSV
dialogs; all-keys also reveals the file path on a partial export.
- notifications: error/warning toasts last 9s/7s (were 4s/3.5s) so failures
are readable.
- qr popup / tx-details: copy-to-clipboard now confirms with a toast.
- about: Escape-to-close + readable heading contrast via OnSurfaceMedium().
- sidebar: suppress single-key nav (J/K/arrows/[) while an overlay dialog or
ImGui popup is open, so it no longer switches the tab behind a modal.
- i18n: strip the stale hardcoded path out of file_save_location in i18n.cpp
and all eight res/lang/*.json locales (additive, one key each).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DanSandClaude Opus 4.8
a99f71a0cd