Fix download table alignment on firefox and chrome
    
    - Previously, the column alignment in the download table was presented
      differently in firefox and chrome. This update corrects that visual
      glitch by changing the col value from 1 to 0 in narrow columns and
      from 7 to 12 on the wider one.
    
    - Previously, we were using a customized css as main visual definition
      of download table. This update relies more on bootstrap main
      definition using .table-hover and .table-borderless; and changes the
      custom css to print the bottom border of table data only.
    
    - Previously, the table was rendered with small texts looking for space
      for the content. However there is enough horizontal space for text to
      be in the normal size. This update makes the table text to inherit the
      page default text size, which make the page more homogeneous on
      reading.