Nullable identifier fixes

lib/models/app.dart

@@ -188,7 +188,7 @@ class App extends BaseApp with DataModelMixin<App> {
     );
 
     final i = await packageManager.getPackageInfo(
-        packageName: identifier, flags: flags);
+        packageName: identifier!, flags: flags);
     if (i == null) {
       return null;
     }
@@ -284,7 +284,7 @@ mixin AppAdapter on Adapter<App> {
 
       if (m != null) {
         for (final app in apps) {
-          queriedAtMap[app.identifier] = m;
+          queriedAtMap[app.identifier!] = m;
         }
       }
     } else {

lib/models/app_curation_set.dart

@@ -21,7 +21,7 @@ class AppCurationSet extends BaseAppCurationSet
 
   Map<String, dynamic> toJson() => super.toMap();
 
-  String get name => content.isNotEmpty ? content : identifier;
+  String get name => content.isNotEmpty ? content : identifier!;
 }
 
 mixin AppCurationSetAdapter on Adapter<AppCurationSet> {

lib/widgets/release_card.dart

@@ -28,7 +28,7 @@ class ReleaseCard extends StatelessWidget {
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            Text(release.version,
+            Text(release.version!,
                 style: TextStyle(fontSize: 26, fontWeight: FontWeight.bold)),
             Gap(10),
             release.content.length < 3000

pubspec.lock

@@ -916,12 +916,10 @@ packages:
   purplebase:
     dependency: "direct main"
     description:
-      path: "."
-      ref: "0.2.0"
-      resolved-ref: "9cd05ac29caaca742a16dc64608cae9751aa0eb1"
-      url: "https://github.com/purplebase/purplebase"
-    source: git
-    version: "0.1.1"
+      path: "../purplebase"
+      relative: true
+    source: path
+    version: "0.2.0"
   quiver:
     dependency: transitive
     description:

pubspec.yaml

@@ -52,10 +52,10 @@ dependencies:
 
 dependency_overrides:
   purplebase:
-    # path: ../purplebase
-    git:
-      url: https://github.com/purplebase/purplebase
-      ref: 0.2.0
+    path: ../purplebase
+    # git:
+    #   url: https://github.com/purplebase/purplebase
+    #   ref: 0.2.0
   flutter_data:
     git:
       url: https://github.com/zapstore/flutter_data