UX Overhaul (#300)

* Add "global actions" to title bar

* Implement actions

* Add "speed dial" action buttons

* tweak global action icons

* Refactor actions for "stock item" display

* Refactor "part" detail

* part category

* SupplierPart

* More updates

* Add BottomAppBar

* Add a global bottom app bar

* Move "edit" buttons back to the app bar

* tweaks

* Updates to drawer navigation menu

* home screen improvements

* text tweaks

* Fix appBarTitle for notifications widget

* Update "tabs" for category display

* Fix for attachment widget

* Update tabs for purchaseorder view

* Update part display

* Cleanup

* Add "BOM" tab to part detail widget

* Paginated list search cleanup

* Update release notes

* Update old function

* linting

* linting

* Tweaks to bottomappbar

- Increase icon size slightly
- Adjust "actions" icon

lib/widget/stock_list.dart

@@ -30,10 +30,10 @@ class _StockListState extends RefreshableState<StockItemList> {
   bool showFilterOptions = false;
 
   @override
-  String getAppBarTitle(BuildContext context) => L10().stockItems;
+  String getAppBarTitle() => L10().stockItems;
 
   @override
-  List<Widget> getAppBarActions(BuildContext context) => [
+  List<Widget> appBarActions(BuildContext context) => [
     IconButton(
       icon: FaIcon(FontAwesomeIcons.filter),
       onPressed: () async {