fix: Navbar overflow issue

[RaunaK-cap]

Description

• Fixed navbar overflow issue by tweaking CSS

Fixes #122

Motivation and Context

• Navbar was breaking at the time of responsiveness , breaking the styling consistency of fully responsive page across all screen

Types of Changes

• [ x ] Bug fix (non-breaking change which fixes an issue)
• [ x ] New feature (non-breaking change which adds functionality)
• [ x ] Enhancement (improvement to an existing feature)
• Breaking change (fix or feature that would cause existing functionality to change)
• Test (adds or updates tests only)
• Documentation (non-code change)

Screenshots (if applicable):

• Before:

• After:

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