- i18n: translate connection screen + chat tab keys into 13 locales;
add "Send my contact" (advert) strings in all locales
- feat: move self-advert from home header into composer "+" action menu
(new lib/utils/advert_helper.dart, always shows Flood/Direct sheet)
- fix: hide-repeaters map toggle was bypassed in simple mode
- fix: simple mode map now shows only favourite chat contacts
- fix: wrap ListTiles in Material (contact_tile secondary actions,
inferred contact group card) to satisfy Flutter ink assertions
- device-authoritative contact/channel sync and UX review fixes
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
