KToolTip: Add examples to the docs

[nucleogenesis]

Overview

Continuing from @GarvitSinghal47 's work in #596 - KToolTip is another component that would be great to have examples for.

Guidance

Props

I think that providing an example demonstrating each prop would be suitable.

How to go about that is a bit open-ended, but a typical use of tooltips in Kolibri is when hovering a KIconButton to provide additional context.

So - one idea is to create a row of KIconButtons for things like "Edit", "Delete" , "Fullscreen".

Slot

I am not sure how best to demonstrate the default slot, however. I think that, typically, we don't want to use tooltips for anything except for providing context with text so I don't think we need to demonstrate using this.

Ideas?

I invite all additional suggestions in the comments.

[GarvitSinghal47]

@nucleogenesis feel free to assign me the issue

[AlexVelezLl]

To give examples of the slot, I think we can say that we can use this if we want more flexibility on the content styles of the tooltip. For example if we want to emphasize something, apply a <em> or <strong> tags, or if we want to add a header <h*> tag to the tooltip, etc.