Documentation: Missing README.md and package descriptions in monorepo

[aniruddhaadak80]

Several packages and apps in the monorepo are missing foundational documentation, specifically 'README.md' files and 'description' fields in 'package.json'. This makes it difficult for new contributors to understand the purpose and usage of these components.

Affected components identified so far:

• 'packages/web-ui-registration' (Missing README.md)
• 'packages/favicon' (Missing description in package.json)
• 'apps/uikit-playground' (Missing description in package.json)

I will be submitting a PR to address these specific gaps.

[Sethsuraj579]

Hi! I’m preparing my contributions for GSoC and I’m new to the Rocket.Chat monorepo.
Can I work on just packages/web-ui-registration/README.md from this issue?
If that’s okay, I’ll open a PR focused only on that change.