Fix network cache images

- Changed from using flutter_advanced_networkimage to cached_network_image
- flutter_advanced_networkimage is now outdated
- cached_network_image is the pseudo official library

lib/widget/company_list.dart

@@ -93,10 +93,7 @@ class _CompanyListState extends RefreshableState<CompanyListWidget> {
       return ListTile(
         title: Text("${company.name}"),
         subtitle: Text("${company.description}"),
-        leading: Image(
-            image: InvenTreeAPI().getImage(company.image),
-            width: 40,
-        ),
+        leading: InvenTreeAPI().getImage(company.image),
         onTap: () {
           if (company.pk > 0) {
             InvenTreeCompany().get(context, company.pk).then((var c) {