Added newsletter subscription form in the footer

[meghanakn473]

Fixes: #891

Description

Adding newsletter form helps users to subscribe and be up to date with the events.

Type of PR

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

Screenshots / videos (if applicable)

BuddyTrail.-.Brave.2024-10-17.22-10-35.mp4

Checklist:

• [X ] I have made this change from my own.
• [X ] My code follows the style guidelines of this project.
• [ X] I have performed a self-review of my own code.
• [X ] I have commented my code, particularly in hard-to-understand areas.
• [X ] My changes generate no new warnings.
• [X ] I have tested the changes thoroughly before submitting this pull request.
• [ X] I have provided relevant issue numbers and screenshots after making the changes.

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[meghanakn473]

@PriyaGhosal please review and allow merge and assign level 2 label please

[PriyaGhosal]

@meghanakn473
Your pull request has been successfully merged! Don't stop here—continue contributing by addressing more issues and aiming to become a top contributor. Exclusive swag awaits for those who go the extra mile!
Great contribution ! 🎉