[Icons] Replace all black icons with white icons #2545

Task

Replace all black icons in public directory with white ones:

Figma link here:

https://www.figma.com/design/YuEbi4x32Mm8ZQJdnrs4uc/Second-Brain-Final-Designs?node-id=9897-26041&t=rYiC8y9yDNtaKKOG-4

Acceptance Criteria

• All public svgs that are black should be replaced with the white equivalent from Figma