Refactor getSortOrder in IDBUtils.kt to ensure valid SQL query construction by providing a default ORDER BY clause when no filter option is specified.

[esentis]

Tested with Xiaomi Mi Mix 2

Fix Android album query SQL ( DBUtils#getAssetPathList )

• Previously, the selection string was concatenated without a separating space/parenthesis, generating invalid SQL like BUCKET_ID IS NOT NULLbucket_id IS NOT NULL … GROUP BY. On stricter OEM MediaStore implementations this caused SQLiteException: no such column: NULLbucket_id when loading albums.
• Updated to build the selection as BUCKET_ID IS NOT NULL plus the filter clause, with proper spacing and grouping, eliminating the malformed column token.

Ensure valid sort clause for paging ( IDBUtils#getSortOrder )

• When no explicit order was provided, the plugin emitted ORDER BY LIMIT … OFFSET …, which is invalid SQL and produced near "LIMIT": syntax error on some devices when paging assets.
• Added a default order (DATE_ADDED DESC, DATE_MODIFIED DESC) before LIMIT/OFFSET, so paging queries are syntactically correct across devices.

[AlexV525]

@esentis Thanks for the catch. Could you add corresponding tests to ensure it works as desired? It would be helpful if you could make screen records to indicate how the previous implementation is not working and how the fix works. Additionally, consider adding a page as a regression tracker under https://github.com/fluttercandies/flutter_photo_manager/tree/main/example/lib/page/developer/issues_page

[esentis]

Ok it seems that the changes made with 3.8.3 fixed my issue so I'm closing this.