6175 prescription price columns

[zachariah-at-msupply]

Fixes #6175

👩🏻‍💻 What does this PR do?

Adds cost and sell price columns to the prescription view.

I removed some of the other columns from the screenshot to highlight the new ones that are available. All the original columns are still available but the 'line total' column is now 'sell price'.

💌 Any notes for the reviewer?

Sup, how's it going?

🧪 Testing

• Make sure you have multiple batches of the same medecine, with different sell and cost prices.
• Create a prescription and sdd both of those different batches of the same medecine to it.
• Go to the prescription's detail view, and check that the sell price column = sell price of one batch * quantity of packs of that batch being dispensed + sell price of the other batch * quantity of packs of that other batch being dispensed, and similar with the cost column.

📃 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: New sell and cost price columns in the Prescriptions detail view.

[github-actions]

Bundle size difference

Comparing this PR to main

Old size	New size	Diff
5.26 MB	5.26 MB	850 B (0.02%)