feat: confirm before deleting a note

[barrydeen]

Summary

• Tapping Delete in a note card's 3-dot menu now opens a confirmation AlertDialog instead of immediately broadcasting the deletion request, so accidental taps don't fire off a kind-5 event.
• Added title_delete_note / msg_delete_note_confirm strings in the default locale plus all 10 translated locales (de, es, fr, it, ja, ko, nl, pt, ru, zh).

Test plan

• Open own note → 3-dot menu → Delete → dialog appears; Cancel dismisses, Delete fires the deletion request.
• Verify strings render in each supported locale.