Documentations: in examples, change all checkboxes to switches

[Kiarokh]

In the examples of components, we have always used checkboxes to toggle features / props of the showcases components, like illustrated below:

But what we should have sued to be "correct" is using switches instead. The reason is that the effect of a switch happens immediately, but a checkbox needs an Apply or Save. We even document this in our guidelines: https://lundalogik.github.io/lime-elements/versions/latest/#/DesignGuidelines/switch-vs-checkbox.md/

Below, you can see an example correctly, using switches: