added a few more things. prev or next day buttons so i can jump between images without the date picker every time. also keyboard navigation with left or right arrows.
added a share button that copies the url with the date so sending someone a link shows the same image. took a bit to figure out URL SearchParams for reading the date back.
also added my contact details (github, email, instagram) to the footer and readme.
had a timezone bug with prev or next , they were jumping 2 days back because toISOString() uses UTC and im in IST. fixed it with a local date helper and noon time.
tried a download button but CORS blocked it. removed it instead of shipping something broken.

its completed now