Layout shift when rendering `react-glider` container on the server

[kevinfarrugia]

At the moment, before the Glider is initialised, the items in the glider-contain do not appear correct and are shifted as the Glider loads.

The user can choose to:

• Incur a layout shift
• Not show the content until the Glider has initialized

This is related to an issue on Glider.js. See https://github.com/NickPiscitelli/Glider.js/pull/235