Review reset of Titleblock coordinate offsets when switching to/from line numbering columns.

Details: <p><strong>Testing:&nbsp;</strong></p><p style="margin-left: 40px;">- Open an &#39;Tabloid&#39; size sheet.</p><p style="margin-left: 40px;">- When choosing &#39;One section&#39; rung numbers (Title block tools), the rung numbers should go all the way down the page.</p><p style="margin-left: 40px;">- When choosing &#39;Two sections&#39; rung numbers,&nbsp;the two rung number columns&nbsp;should stop just shy of the top of the&nbsp;title block.</p>