feat: Adding upload image feature

[AdityaInnovates]

Description

Add Image/Logo Upload Feature for Election Creation
I propose adding an image/logo upload feature to the "Create Election" page, allowing users to attach a visual identity to their elections. This will enhance user engagement and provide a more intuitive voting experience.

Implementation:
Add an image upload field to the election creation form.
Store the uploaded image using a decentralized storage solution (e.g., IPFS) or Firebase Storage.
Save the image URL along with election metadata on the blockchain.
Display the uploaded image in the election details page.

This feature will enhance the UI/UX and strengthen election branding. Let me know your thoughts so I can get started!

Fixes # (issue)

Type of change

Please mark the options that are relevant.

• Updated UI/UX
• Improved the business logic of code
• Added new feature
• Other

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings