Description of problem:
There is one more <th> tag (//*[@id="repo-sets-tab"]/table/thead/tr/th[7]), which creates a header for an empty column, that is not used.

Version-Release number of selected component (if applicable):
satellite-6.13.0-6.el8sat.noarch
foreman-3.5.1.14-1.el8sat.noarch
Red Hat Enterprise Linux release 8.7 (Ootpa)

How reproducible:
Every time

Steps to Reproduce:
1. Register host
2. Navigate to All hosts->$hostname->Content->Repository sets
3. Check DOM for the table, the number of header columns should be the same as the number of columns in rows

Actual results:
There is one more column in the header (th) compared to columns in rows (td).

Expected results:
The number of columns should be the same