Refactor
    MainActivity: migrate to view binding
    ViewEntryActivity: use Parcelable Entry
    Add/Edit screen: add Toolbar and Up navigation
Update
    dependencies and app version
    Kotlin version badge
Implement
    password settings persisted via SharedPreferences
Security
    disable automatic backup and data extraction
UX
    enable visibility toggle for passkey/PIN fields
Entry view
    show created and modified dates
Docs
    revise PassVault description
