Check if all village exists before saving data, save data of villages which exists and throw error for the villages which doesn't

[singhalkarun]

https://github.com/Samagra-Anamaya/workflow/blob/15ac85d02d7d2f3f7e4cfe75855300aee5bf44a6/packages/bff/src/submission/submission.service.ts#L54C1-L63C10