TF-3296 Fix [SEARCH] Can't apply the "Starred" filter in search

[dab246]

Issue

3296

Root cause

• The keyword starred was not added to the filter when performing a search.

Resolved

https://github.com/user-attachments/assets/6a3d40c6-3bec-405f-a690-0ba46afdcff7

[github-actions[bot]]

This PR has been deployed to https://linagora.github.io/tmail-flutter/3304.