feat: Add more user related state to hive

lib/core/config/hive/custom_adapters/theme_mode_adapter.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:hive_flutter/adapters.dart';
+import 'package:paperless_mobile/core/config/hive/hive_config.dart';
+
+class ThemeModeAdapter extends TypeAdapter<ThemeMode> {
+  @override
+  final int typeId = HiveTypeIds.themeMode;
+
+  @override
+  ThemeMode read(BinaryReader reader) {
+    switch (reader.readByte()) {
+      case 0:
+        return ThemeMode.system;
+      case 1:
+        return ThemeMode.dark;
+      case 2:
+        return ThemeMode.light;
+      default:
+        return ThemeMode.system;
+    }
+  }
+
+  @override
+  void write(BinaryWriter writer, ThemeMode obj) {
+    switch (obj) {
+      case ThemeMode.system:
+        writer.writeByte(0);
+        break;
+      case ThemeMode.light:
+        writer.writeByte(1);
+        break;
+      case ThemeMode.dark:
+        writer.writeByte(2);
+        break;
+    }
+  }
+
+  @override
+  int get hashCode => typeId.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is ThemeModeAdapter &&
+          runtimeType == other.runtimeType &&
+          typeId == other.typeId;
+}