feat: db changes to accommodate new cross device syncing logic. (#450)

* feat: db changes to accommodate new syncing logic.

Using timestamp to sync is a bit skewed due to system clock etc and therefore there was a lot of issues with it such as removing a manga that shouldn't have been removed. Marking chapters as unread even though it was marked as a read. Hopefully by using versioning system it should eliminate those issues.

* chore: add new line.

* chore: remove isSyncing from Chapter/Manga model.

* chore: remove isSyncing leftover.

* chore: remove isSyncing.

* refactor: remove isSync guard.

Just use it directly to 1 now since we don't have the isSyncing field in Manga or Chapter.

* Lint and stuff

* Add missing ,

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Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
(cherry picked from commit 4ae9dbe52487185ef9ee25f58fabe5025bb2278b)

# Conflicts:
#	app/build.gradle.kts
#	app/src/main/java/eu/kanade/tachiyomi/data/backup/create/creators/MangaBackupCreator.kt
#	app/src/main/java/eu/kanade/tachiyomi/data/backup/models/BackupChapter.kt
#	app/src/main/java/eu/kanade/tachiyomi/data/backup/models/BackupManga.kt
#	data/src/main/java/tachiyomi/data/chapter/ChapterRepositoryImpl.kt
#	data/src/main/sqldelight/tachiyomi/migrations/2.sqm
#	domain/src/main/java/tachiyomi/domain/manga/model/MangaUpdate.kt

app/src/main/java/exh/eh/EHentaiUpdateHelper.kt

@@ -254,6 +254,7 @@ class EHentaiUpdateHelper(context: Context) {
                         scanlator = null,
                         sourceOrder = -1,
                         lastModifiedAt = 0,
+                        version = 0,
                     )
                 }
             }