* fix(ios): show gateway errors once as a swipeable animated toast
Gateway connection errors on the Settings > Gateway page appeared twice:
as the app-wide toast and again as an embedded banner section. Remove the
embedded banner (and its now-dead sheet/action helpers) so problems surface
only via the root toast, animate the toast in smoothly from the top, and
support swipe-up to dismiss with re-arm on new problems.
* fix(ios): re-surface gateway toast on repeated problem reports
A swiped-away toast stayed hidden when a retry failed with an identical
problem, because value equality alone produces no observable change. The
model now counts every problem report; a report while hidden re-shows the
toast, and a report while visible shakes it instead of stacking a new one.
* fix(ios): keep reset-onboarding action on the gateway toast and sync i18n inventory
The root toast is now the only gateway problem surface outside covers, so it
must keep the reset-onboarding primary action the removed settings banner had:
auth-token-mismatch problems now show Reset onboarding and run the full
GatewayOnboardingReset flow. Also refreshes the native i18n inventory for the
changed Swift strings.
* fix(ios): preserve gateway problem recovery state
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Co-authored-by: Peter Steinberger <steipete@gmail.com>
