Fixed visual bugs, added notifications on document upload success, enabled editing in inbox, added hints

lib/core/widgets/hint_card.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:paperless_mobile/extensions/flutter_extensions.dart';
+import 'package:paperless_mobile/generated/l10n.dart';
+
+class HintCard extends StatelessWidget {
+  final String hintText;
+  final double elevation;
+  final VoidCallback onHintAcknowledged;
+  final bool show;
+  const HintCard({
+    super.key,
+    required this.hintText,
+    required this.onHintAcknowledged,
+    this.elevation = 1,
+    required this.show,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedCrossFade(
+      sizeCurve: Curves.elasticOut,
+      crossFadeState:
+          show ? CrossFadeState.showFirst : CrossFadeState.showSecond,
+      secondChild: const SizedBox.shrink(),
+      duration: const Duration(milliseconds: 500),
+      firstChild: Card(
+        elevation: elevation,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.start,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Icon(
+              Icons.tips_and_updates_outlined,
+              color: Theme.of(context).hintColor,
+            ).padded(),
+            Align(
+              alignment: Alignment.center,
+              child: Text(
+                hintText,
+                softWrap: true,
+                textAlign: TextAlign.center,
+                style: Theme.of(context).textTheme.bodySmall,
+              ),
+            ),
+            Align(
+              alignment: Alignment.bottomRight,
+              child: TextButton(
+                child: Text(S.of(context).genericAcknowledgeLabel),
+                onPressed: onHintAcknowledged,
+              ),
+            ),
+          ],
+        ).padded(),
+      ).padded(),
+    );
+  }
+}