added payment feature for rent and sale and ReamMe

FEAT: edit deals, profile picture added

changed base copyright from 2024 to 2025

FEAT: everything is working except deal not disappearing after claim

bel working link

work with bel not currently working

Merge branch 'main' of https://github.com/IMINABO1/NexusTech2025

Initial commit

first working commit TODO: Image not showing after posting