Added Signin Backend

[kashnx]

Made backend for login. Kindly tell which pages to display after login and what before logging in.

Fixes: #88

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I have made this from my own
• I have taken help from some online resourses
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

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Name	Status	Preview	Comments	Updated (UTC)
quine-scrap-quest	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 22, 2024 6:59am

[kashnx]

Hey, why havent you merged it?