Carousel target dots should be larger

[StephDriver]

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Describe the inaccessible feature
Minimum target size is 24 x 24 see #339
The dots for moving the carousel are smaller than this minimum (15px).

Which users are impacted?
(delete as applicable)

1. Everyone

To Reproduce
Steps to reproduce:

1. example - our team page

Screenshots

Preferred Solution

Increase the size of these dots to 24 x 24 px.

Front-end Issues (only)

If the issue is front-end specific please add the following details:

Desktop (please complete the following information):

• MacOS Chrome