feat(apple): send a transfer to a device from the share panel

Send to a device now sits alongside the QR code, NFC, and export actions,
since an offer is another way to deliver the same invitation. Picking a
device pushes the existing transfer rather than re-sharing the files.

The picker lists only devices holding a live grant, so nothing offered there
can fail on tap, and it distinguishes accepted from waiting for that device
to open the app.

Also fixes the deprecated SF Symbol and the two Sendable warnings introduced
with the contacts screen: the sections now talk to the model directly rather
than storing view callbacks that a Binding setter has to convert.

shared/src/commonMain/composeResources/values-nl/strings.xml

@@ -344,6 +344,10 @@
     <string name="contacts_offer_held">Dat apparaat is niet geopend. De overdracht wordt bezorgd zodra het VniDrop weer opent.</string>
     <string name="contacts_waiting_title">Wacht op bezorging</string>
     <string name="contacts_waiting_hint">Annuleer de overdracht om die in te trekken.</string>
+    <string name="contacts_send_to_device">Naar een apparaat sturen</string>
+    <string name="contacts_pick_device_title">Kies een apparaat</string>
+    <string name="contacts_pick_device_empty">Er is nu geen apparaat bereikbaar. Onthouden apparaten verschijnen hier na een overdracht.</string>
+    <string name="contacts_sent_to_device">%1$s heeft de overdracht geaccepteerd</string>
     <plurals name="transfer_file_count">
         <item quantity="one">%1$d bestand</item>
         <item quantity="other">%1$d bestanden</item>