[media-library] Refactor to Kotlin 3 - Album migration

[barthap]

Why, How etc...

See #14562 description for details.

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This is part of a PR stack:

1. [media-library] Refactor to Kotlin 1 - Base module #14562
2. [media-library] Refactor to Kotlin 2 - Albums #14563
3. This PR - rewritten album migration to Kotlin, extracted it to expo.modules.medialibrary.albums.migration package
4. [media-library] Refactor to Kotlin 4 - Asset management #14565
5. [media-library] Refactor to Kotlin 5 - Utilities #14566
6. Coroutines + refactor error handling (No PR yet)

[lukmccall]

Great job 🥇

[lukmccall]

Suggested change

	).use { albumCursor ->
	if (albumCursor != null && albumCursor.moveToNext()) {
	val dataColumnIndex = albumCursor.getColumnIndex(MediaStore.Images.Media.DATA)
	val fileInAlbum = File(albumCursor.getString(dataColumnIndex))
	if (fileInAlbum.isFile) {
	return File(fileInAlbum.parent ?: return null)
	}
	}
	}
	)?.use { albumCursor ->
	if (albumCursor.moveToNext()) {
	val dataColumnIndex = albumCursor.getColumnIndex(MediaStore.Images.Media.DATA)
	val fileInAlbum = File(albumCursor.getString(dataColumnIndex))
	if (fileInAlbum.isFile) {
	return File(fileInAlbum.parent ?: return null)
	}
	}
	}

You can remove the null check, but I'm not sure if that looks better 🤷‍♂️

[lukmccall]

You can do something with that type to make it looks better. If you use a different type here (Unit or Any), you don't have to return null. However, I know, you're going to rewrite that using corutines. So leave it as it's.

[kkafar]

Looks good, no objections

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