add useMatomo hook so we can use this in all apps moving forward

[DenizYil]

This PR

adds a useMatomo hook which we can use in all apps moving forward. It makes use of 2 environment variables to provide flexibility. It is documented as well.

Notes

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Fulfilled the scope of this repo?

• The same functionality of the component can not be achieved with theming, basic styling or composition of existing components
• The component implements an element of the DHI Design Guidelines or is otherwise generic enough in functionality and close enough to the DHI CVI that it is likely to find reuse in other projects

Completness

• Story included

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