feat: Replaced previous website logo

[Gultreen]

Title : Replacing name with logo in the navbar

Issue No. : #844

Code Stack : HTML , CSS

Close #844

Description

Video/Screenshots (mandatory)

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist:

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have gone through the contributing.md file before contributing

Additional context:

##Are you contributing under any Open-source programme?

• I am contributing under GSSOC'24
• I am contributing under VSOC'24

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[github-actions]

Hi @Gultreen! Thank you for your valuable contribution! Our team will review it and get back to you soon.

[apu52]

@Gultreen good work