Describe the bug

Hi,
the patch #2681 didn't take account of the 'table-class' prop.
Unlike the original bootstrap-vue library, 'fixed' and 'noBorderCollapse' properties do not work when the 'table-class' property is also used.

In the reproduction example, you can see (using browser's inspector) that classes 'b-table-fixed' and 'b-table-no-border-collapse' are not applied to the table element.

Reproduction

https://stackblitz.com/edit/github-huqpsoqb-463uddxl

Used Package Manager

pnpm