Barcode scan refactor (#651)

* Build file changes

Lots of changes required to meet compatibility of new mobile_scanner lib

* Increase build memory

* Refactor camera controller

- Use MobileScanner now
- Much better UX / feedback

* Cleanup

* Move test sheet file

* Update release notes

* Move actions to floating action buttons

* Tweak deps

* tweak github actions

* Updates

assets/release_notes.md

@@ -1,3 +1,7 @@
+### 0.19.0 - June 2025
+---
+- Replace barcode scanning library for better performance
+
 ### 0.18.1 - April 2025
 ---
 - Fix bug associated with handling invalid URLs