Adds the "Modal" component from Tobira.
The component is ported with the minimum
amount of required changes. Translations
string will have to be provided in their
translated form.

Adds another button component from
Tobira, with the goal of using it in the
confirmation modal from Tobira. The
button can be normal, happy or danger.

As how it is in Tobira.

Adds a nice little error box from Tobira to
render errors in. Also adds the card component
which is required for that. Used by confirmation
modal.

Adds the confirmation modal from tobira

Added missing colors, changed unused colors.

As suggested by @LukasKalbertodt. Thanks.

It is not necessary.

Move code over to button.tsx

Optional, defaults to "currentcolor".

Based on the advice by @LukasKalbertodt

We should not rely on a hook in a function
working, so better let the calling component
pass it.