[EuiDataGrid] Fix initial alignment of cells and expand button on mul…

…ti-line cells (elastic#4955)

* Fixed initial alignment issue due to missing wrapper
  - Also cleaned up class name usage
* Absolutely positioning expand button when cell height is controlled and changing break-all to -word

35.1.0

35.0.0

34.6.0

34.5.2

34.5.1

34.5.0

34.4.0

34.3.0

34.2.0