[Feature] Add issue and PR templates

[Open-Source-you]

Is your feature request related to a problem? Please describe.
Inconsistent issue and PR formats make project maintenance harder.

Describe the solution you'd like
Add standardized GitHub issue and PR templates to guide contributors.

Describe alternatives you've considered
Manual formatting, but templates are more effective.

Additional context
Templates will help with triage and improve project organization.

[kumaradarsh2]

Hi, I'd love to work on this issue for Hacktoberfest. Please assign this issue to me.
Thank you.

[kumaradarsh2]

@Open-Source-you I’ve completed the requested changes on this PR #514 for the issue #493. Can you please review it?
Edit: @Open-Source-you Is this the duplicate issue or already has solved?