U4X-383 : Remove the ability of editing a packaging Unit

[jabahum]

Requirements

• [ ] This PR has a title that briefly describes the work done including a conventional commit type prefix and a Jira ticket number if applicable. See existing PR titles for inspiration.

For changes to apps

• [ ] My work conforms to the OpenMRS 3.0 Styleguide and design documentation.

If applicable

• [ ] My work includes tests or is validated by existing tests.

Summary

This PR https://github.com/METS-Programme/esm-ugandaemr-stock-management/pull/107 makes the packaging unit records none editable and provides for adding a new record

Screenshots

Before

After

Related Issue

https://metsprogramme.atlassian.net/browse/U4X-383

Other

[makombe]

@jabahum From the previous UI i.e 2x were we editing the packaging unit ?

[jabahum]

@jabahum From the previous UI i.e 2x were we editing the packaging unit ?

above is the view of the current 2.x and its what was trying to mimic