Refactor: Extract logo CSS filter to reusable class

[coderabbitai]

Description

The logo CSS filter is currently duplicated across multiple components with a complex inline style. This hurts maintainability and consistency as the same filter needs to be applied in multiple places.

Problem

• Complex CSS filter is hardcoded inline in Image components
• Filter is duplicated across components (Header, reset page, etc.)
• Changes to the logo styling require updates in multiple files

Solution

Extract the logo filter to a reusable CSS class in the global stylesheet to improve maintainability and ensure consistency.

Related

• PR: Refactor UI components and enhance Supabase integration #65
• Comment: Refactor UI components and enhance Supabase integration #65 (comment)
• Requested by: @daemon-node-byte