[Feature] API tabs

[skoropadas]

Description

At the current moment, we display only one API page for each entity and it's a bit overloaded especially for classes, I think it would be more flexible to start grouping information about entities via tabs.

Proposed solution

For example, Angular Component may have 3 tabs:

• API - should contain basic information about the component, such as a list of members.
• References - should contain links to the current entity as a type or function call, or to the component that is using the current one.
• Framework-specific tab - for Angular, we can display information on which module declared and exports the component, whether it is standalone, and other framework-specific information. We could also add a plugin system in the future to allow users to create custom tabs with the information they want to display.

Alternatives considered