OBLS-558 Add Override destination dialog to putaway location/quantity…

[olewandowski1]

… screen

https://openboxes.atlassian.net/browse/OBLS-558

What changed

• Replaced the big Request button + "Alternative Location?" row with an inline Override link inside the Putaway Location chip (Location Scan + Quantity screens).
• Redesigned the dialog into Override destination:
  • Selectable list - current destination first, then deduped alternatives (name + type).
  • Use a new location option with a scan/search Destination field.
  • Current destination preselected; Save disabled until the selection changes.

Kazam_screencast_00090.mp4