Fix/SW-1563 accessibility

* fix(SW-1563): Added new IconButton component to the design system and removed Icon variant inside the Button component
* fix(SW-1563): Added buttons around clickable images and changed to design system components
* fix(SW-1563): Renamed variants to match Figma
* fix(SW-1563): Renamed AriaButton to ButtonRAC

Approved-by: Michael Zetterberg
Approved-by: Matilda Landström

packages/design-system/lib/components/RateCard/Regular/index.tsx

@@ -1,6 +1,6 @@
 import { Rate, RateTermDetails } from '../types'
 
-import { Button } from '../../Button'
+import { IconButton } from '../../IconButton'
 import { MaterialIcon } from '../../Icons/MaterialIcon'
 import { Typography } from '../../Typography'
 import Modal from '../Modal'
@@ -56,13 +56,13 @@ export default function RegularRateCard({
                   title={rateTitle}
                   subtitle={paymentTerm}
                   trigger={
-                    <Button variant="Icon" size="Small">
+                    <IconButton theme="Black" style="Muted">
                       <MaterialIcon
                         icon="info"
                         size={20}
                         color="Icon/Default"
                       />
-                    </Button>
+                    </IconButton>
                   }
                 >
                   {rateTermDetails.map((termGroup) => (