Improve search results

I think there are 2 things to improve in the results, one is the order and the other is the name of the section in which they appear.
For example, in the image I show I am searching for stackLayout and searches related to stackLayout appear before the component itself.

1. Improvement in order: When performing the search I think the entry to the component should appear first
2. Incoherent titles: When searching for stackLayout the entry that is related to the component appears in the Documentation section. It's all documentation, right? I think a more coherent title would be the documentation space itself: UI Components.
3. Incorrect section: This is related to the previous point, 2 StackLayout entries appear within Documentation, one is the component and the other is the API. This is quite confusing, I think each entry should appear with the title of the documentation section, for the component UI Components and for the API API Reference.

复现 issue 中显示的 stackLayout 搜索，并检查搜索入口点和文档部分元数据。确认组件条目和 API 条目的排序及标签方式。完成标准是组件结果排在相关结果之前，组件条目标记为 UI Components，API 条目标记为 API Reference。