Move migration files into new folder

src/modules/migration/Migration.constants.ts

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { SortBy, SortOrder } from '@/modules/migration/Migration.types.ts';
+
+import { TranslationKey } from '@/Base.types.ts';
+
+export const sortByToTranslationKey: Record<SortBy, TranslationKey> = {
+    [SortBy.SOURCE_NAME]: 'migrate.sort.by_source_name',
+    [SortBy.MANGA_COUNT]: 'migrate.sort.by_manga_count',
+};
+
+export const sortOrderToTranslationKey: Record<SortBy, TranslationKey> = {
+    [SortOrder.ASC]: 'global.sort.label.asc',
+    [SortOrder.DESC]: 'global.sort.label.desc',
+};
+
+export const DEFAULT_SORT_SETTINGS = {
+    sortBy: SortBy.SOURCE_NAME,
+    sortOrder: SortOrder.ASC,
+};