Search functionality in Packages Tab searches for test instead of package name in allure-2

**Describe the bug**
^

**To Reproduce**
Steps to reproduce the behavior:
1. Go to https://demo.qameta.io/allure/#packages
2. Go to Packages tab
3. Search for 'Migration'

**Expected behavior**
The search result should've shown the package and relevant tests

**Screenshots**

Open the linked demo and reproduce the issue from the Packages tab by searching for “Migration.” Trace the Packages tab search behavior and compare the result with the expected package and relevant tests; done means the search uses the package name and displays the matching package and tests.

Written by the indexing model from the issue text.