Update status codes (#307)

* Extra error info when connecting to server

* Adds accessors for various types of status codes

* Cleanup / refactor stock status codes

- No longer need to duplicate these on the app

* improvements to purchase order list

- Add option to show closed orders
- Render order status

* Add purchase order status to order detail widget

* Update release notes

* Cleanup for imports

* linting fixes

assets/release_notes.md

@@ -7,6 +7,8 @@
 - Fixes keyboard bug in search widget
 - Adds ability to create new purchase orders directly from the app
 - Adds support for the "contact" field to purchase orders
+- Improved rendering of status codes for stock items
+- Added rendering of status codes for purchase orders
 
 ### 0.11.0 - April 2023
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