Add support for custom tooltip component in Popover

[zoghot]

It would be great to have the ability to customize the tooltip component in the Popover component. Currently, the Popover component has a predefined structure and style, which limits its flexibility. By allowing users to pass a custom tooltip component, we can enhance the versatility of the Popover component, making it more adaptable to various use cases.

Feature Request:

• Add a new prop customTooltip to the Popover component.
• The customTooltip prop should accept a React component that will be rendered inside the Popover.
• Ensure that all existing functionality and styles are preserved when a custom tooltip is not provided.
• Update the documentation to reflect this new feature.

Example Usage:

import { Popover } from 'concis';
import CustomTooltip from './CustomTooltip';

const MyComponent = () => (
  <Popover content={<CustomTooltip />} type="hover">
    <button>Hover me</button>
  </Popover>
);