ref(button) move title to tooltipProps

[JonasBa]

The decision to merge tooltip and button props has not stood the test of time well, and will be something that we will remove.

The main reason for this change is that the abstraction to wrap Button with <Tooltip><Button> is a) very cheap and b) explicit and what you would expect.

Wee are seeing that even though Buttons natively support tooltips, developers will still reach for the Tooltip component, resulting in expanded JSX that which looks like <Tooltip><Tooltip><button>...</button></Tooltip></Tooltip> where only the external tooltip is rendered and the internal one is wasted.

Wrapping a Tooltip around our Button in all instances also adds runtime cost that could otherwise be avoided entirely, and results in a smaller prop definition that only relates to the button. Developers get a more explicit API with better LSP experience while also giving us the bonus of a faster runtime experience.

[cursor]

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