FEATURES BY STORIES is missing

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#### I'm submitting a ...
- [ x] bug report
- [ ] feature request
- [ ] support request => Please do not submit support request here, see note at the top of this template.

#### What is the current behavior?
In the allure home page the FEATURES BY STORIES is missing.

The section is correctly showed up to ver 2.20.1.
More recent versions included 2.24.0 do not show the section FEATURES BY STORIES anymore.

#### If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem
1. GO to the allure WEB homepage

#### What is the expected behavior?
The FEATURES BY STORIES section should correctly showed.

#### What is the motivation / use case for changing the behavior?

#### Please tell us about your environment:

- Allure version: 2.24.0
- Test framework: behave
- Allure adaptor: allure-behave@2.13.2

#### Other information

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. e.g. detailed explanation, stacktraces, related issues, suggestions
. how to fix, links for us to have more context, eg. Stackoverflow, Gitter etc
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从 Allure Web 主页开始，使用 Allure 2.24.0、allure-behave 2.13.2 和提供的报告上下文，复现缺失的 FEATURES BY STORIES 部分。将结果与 2.20.1 版本进行比较；完成的标准是该部分在较新版本中存在且显示正确。

由索引模型根据 Issue 内容生成。