Fix not updating bestDateTime when updating file property

app/lib/entity/file.dart

@@ -6,6 +6,7 @@ import 'package:nc_photos/account.dart';
 import 'package:nc_photos/ci_string.dart';
 import 'package:nc_photos/entity/exif.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
+import 'package:nc_photos/entity/file_util.dart' as file_util;
 import 'package:nc_photos/json_util.dart' as json_util;
 import 'package:nc_photos/or_null.dart';
 import 'package:nc_photos/string_extension.dart';
@@ -568,11 +569,11 @@ class File with EquatableMixin implements FileDescriptor {
 }
 
 extension FileExtension on File {
-  DateTime get bestDateTime =>
-      overrideDateTime ??
-      metadata?.exif?.dateTimeOriginal ??
-      lastModified ??
-      DateTime.now().toUtc();
+  DateTime get bestDateTime => file_util.getBestDateTime(
+        overrideDateTime: overrideDateTime,
+        dateTimeOriginal: metadata?.exif?.dateTimeOriginal,
+        lastModified: lastModified,
+      );
 
   bool isOwned(CiString userId) => ownerId == null || ownerId == userId;
 }

app/lib/entity/file/data_source.dart

@@ -469,6 +469,17 @@ class FileSqliteDbDataSource implements FileDataSource {
               : sql.Value(overrideDateTime.obj),
           isFavorite:
               favorite == null ? const sql.Value.absent() : sql.Value(favorite),
+          bestDateTime: overrideDateTime == null && metadata == null
+              ? const sql.Value.absent()
+              : sql.Value(file_util.getBestDateTime(
+                  overrideDateTime: overrideDateTime == null
+                      ? f.overrideDateTime
+                      : overrideDateTime.obj,
+                  dateTimeOriginal: metadata == null
+                      ? f.metadata?.exif?.dateTimeOriginal
+                      : metadata.obj?.exif?.dateTimeOriginal,
+                  lastModified: f.lastModified,
+                )),
         );
         await (db.update(db.accountFiles)
               ..where((t) => t.rowId.equals(rowIds.accountFileRowId)))

app/lib/entity/file_util.dart

@@ -96,6 +96,12 @@ bool isMissingMetadata(File file) =>
     isSupportedImageFormat(file) &&
     (file.metadata == null || file.location == null);
 
+DateTime getBestDateTime({
+  DateTime? overrideDateTime,
+  DateTime? dateTimeOriginal,
+  DateTime? lastModified,
+}) => overrideDateTime ?? dateTimeOriginal ?? lastModified ?? DateTime.now().toUtc();
+
 final supportedFormatMimes = [
   "image/jpeg",
   "image/png",