6353 prescribed quantity improvements

[GeronimoJohn]

Fixes #6353

👩🏻‍💻 What does this PR do?

This improves the logic for assigning the prescribed quantity. Instead of assigning it to each issued line, it only assigns the prescribed quantity to the first line that is issued.

Screen.Recording.2025-02-03.at.11.56.11.AM.mov

💌 Any notes for the reviewer?

🧪 Testing

Check the network tab or through GraphQL Network plugin to check which issued line prescribed quantity is getting assigned to.

• Edit or create a new prescription
• A field called Prescribed Quantity is on the screen
• The field should either be pre-filled with a default value or zero if there's none
• The field can be updated to our desired prescribed quantity
  • Prescribed Quantity should only be saved on the first allocated line in the prescription.
  • Only 1 line should have prescribed quantity per prescription per item.
  • If the line containing the prescribed quantity is deleted or allocated 0 stock, the prescribed quantity should be saved to the next line.
  • Prescribed quantity can be saved against a placeholder line if no stock is allocated for that item

📃 Documentation

• Part of an epic: documentation will be completed for the feature as a whole
• No documentation required: no user facing changes or a bug fix which isn't a change in behaviour
• These areas should be updated or checked:
  1.
  2.

[github-actions]

Bundle size difference

Comparing this PR to main

Old size	New size	Diff
5.26 MB	5.26 MB	260 B (0.00%)

[CarlosNZ]

Thanks, I'll review this and the base properly once this is merged in.