fix: table pagination margin bottom

[mas-who]

Done

• Adjusted bottom margin for the table pagination component in lxd-ui

QA

1. Run the LXD-UI:
   • On the demo server via the link posted by @webteam-app below. This is only available for PRs created by collaborators of the repo. Ask @mas-who or @edlerd for access.
   • With a local copy of this branch, run as described here.
2. Perform the following QA steps:
   • Check there is no bottom margin for the table pagination controls

[webteam-app]

Demo starting at https://lxd-ui-667.demos.haus