Age Calculator App Solution

This challenge seems very easy at first, but input validation is not an easy process, and it take much time for implementing and testing code manually.

• I fixed negative result values
• I added the total extra days of the previous leap years
• I added a key binding for submitting on Enter click

I also did some manual testing which means that there might be some bugs that I did not observe. I would be so grateful to know your criticisms and observations

Am open to collaborate with anyone using the same technologies as Nextjs and React on future challenges. Thanks for checking my solution.