docs: fix the harness with method's options list format in using component harnesses (#20609)
docs: fix the harness with method's options list format in using component harnesses (#20609)

Remove whitespace that causes an item in the options list of the harness with method to be
rendered as a code block.
mmalerba/material2,angular/components,andrewseguin/material2,josephperrott/material2,mmalerba/material2,josephperrott/material2,DevVersion/material2,mmalerba/material2,crisbeto/material2,angular/components,mmalerba/material2,josephperrott/material2,crisbeto/material2,crisbeto/material2,DevVersion/material2,andrewseguin/material2,angular/components,josephperrott/material2,andrewseguin/material2,andrewseguin/material2,DevVersion/material2,crisbeto/material2,josephperrott/material2,DevVersion/material2,andrewseguin/material2,mmalerba/material2,DevVersion/material2,angular/components