added hover animations to navbar

[arpit456jain]

INCLUDE ALL NECESSARY FIELDS AND DELETE FIELDS THAT ARE NOT NECESSARY.

Description

added hover animations to navbarFixes

Fixes : #172

Type of Change:

Delete irrelevant options.

• Code
• Quality Assurance
• User Interface
• Outreach
• Documentation

Code/Quality Assurance Only

• Bug fix (non-breaking change which fixes an issue)
• This change requires a documentation update (software upgrade on readme file)
• New feature (non-breaking change which adds functionality pre-approved by mentors)

How Has This Been Tested?

Describe the tests you ran to verify your changes. Provide instructions or GIFs so we can reproduce. List any relevant details for your test.

https://user-images.githubusercontent.com/55352601/120097259-2ad24d00-c14d-11eb-8d32-420f4043fde8.mp4

[arpit456jain]

@sakshi300699 @anika-001 @ishubham21 kindly review my PR

[arpit456jain]

@rupeshmohanty kindly merge it