A followup commit will modify the optimize functions,
which currently function as a minimize, so lets make
sure that the ability to minimize is still available.

Minimize column width: Adjusts the width of the
selected columns to fit the selected content.
The table can shrink if necessary, but will not grow.
(This is how Optimize column width worked in LO <= 6.1.)

Minimize row height: Adjusts the height of the
selected rows to fit the content, causing the table to shrink.
(This is how Optimize row height worked in LO <= 6.1.)

Change-Id: I2c0b8c7b7a05c31328f2feef464ef0e131318ff8
Reviewed-on: https://gerrit.libreoffice.org/60902
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>