Translate English alt text to Catalan in README.ca.md

[kl2400033266]

Summary

This PR translates the English alt text attribute to Catalan for the git-status.png image in the Catalan README translation file.

Changes Made

• Changed alt="git status" to alt="estat del git" on line 66 of docs/translations/README.ca.md

Why This Change

This improves accessibility for Catalan speakers who use screen readers or other assistive technologies. Having alt text in the user's native language provides a better experience.

Related Issue

Resolves #105356

• [x] I had fun going through this tutorial and learned on the way!