added Sign in first alert

[Sneha-Sonkar]

Pull Request

Title and Issue Number (mandatory)

Title : Blank Page Appears on Clicking Vacant Profile Icon

Issue No. : 5

Close # Blank Page Appears on Clicking Vacant Profile Icon Issue No. : 5

Description (30-50 words)

I added a pop up alert saying "Sign in first". Now, when the Vacant profile picture will be clicked, the pop up asking the user to sign in first will be shown.

Screenshot (mandatory)

![Uploading Screenshot 2024-01-18 192628.png…]()

Files Changed (mandatory)

Added a alert asking the user to sign in first through an onclick() function in Header.js file

• Header.js

Checklist: (mandatory)

• [X] I have mentioned the issue number in my Pull Request.
• [ X] I have commented my code, particularly in hard-to-understand areas

Additional context

Are you contributing under any Open-source programme? Yes, I am contributing in JGEC:JWoc

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