Adds success messages after editing things

lib/widget/category_display.dart

@@ -9,6 +9,7 @@ import "package:inventree/app_colors.dart";
 import "package:inventree/inventree/part.dart";
 import "package:inventree/widget/part_list.dart";
 import "package:inventree/widget/progress.dart";
+import "package:inventree/widget/snacks.dart";
 import "package:inventree/l10.dart";
 import "package:inventree/widget/part_detail.dart";
 import "package:inventree/widget/refreshable_state.dart";
@@ -66,6 +67,7 @@ class _CategoryDisplayState extends RefreshableState<CategoryDisplayWidget> {
         L10().editCategory,
         onSuccess: (data) async {
           refresh();
+          showSnackIcon(L10().categoryUpdated, success: true);
         }
     );
   }

lib/widget/location_display.dart

@@ -10,6 +10,7 @@ import "package:inventree/barcode.dart";
 import "package:inventree/inventree/stock.dart";
 import "package:inventree/widget/progress.dart";
 import "package:inventree/widget/refreshable_state.dart";
+import "package:inventree/widget/snacks.dart";
 import "package:inventree/widget/stock_detail.dart";
 import "package:inventree/l10.dart";
 import "package:inventree/widget/stock_list.dart";
@@ -88,6 +89,7 @@ class _LocationDisplayState extends RefreshableState<LocationDisplayWidget> {
       L10().editLocation,
       onSuccess: (data) async {
         refresh();
+        showSnackIcon(L10().locationUpdated, success: true);
       }
     );
   }

lib/widget/part_detail.dart

@@ -16,6 +16,7 @@ import "package:inventree/widget/category_display.dart";
 import "package:inventree/api.dart";
 import "package:inventree/widget/refreshable_state.dart";
 import "package:inventree/widget/part_image_widget.dart";
+import 'package:inventree/widget/snacks.dart';
 import "package:inventree/widget/stock_detail.dart";
 import "package:inventree/widget/stock_list.dart";
 
@@ -104,6 +105,7 @@ class _PartDisplayState extends RefreshableState<PartDetailWidget> {
       L10().editPart,
       onSuccess: (data) async {
         refresh();
+        showSnackIcon(L10().partEdited, success: true);
       }
     );
   }

lib/widget/stock_detail.dart

@@ -122,6 +122,7 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
       fields: fields,
       onSuccess: (data) async {
         refresh();
+        showSnackIcon(L10().stockItemUpdated, success: true);
       }
     );