Fix additional scroll offset issues

In most use cases, we want to jump to a section (i.e. a div with the
widget-box class); many of these already have an id, so we just need to
extend the scroll offset rule by adding the div.widget-box selector
to fix those.

Additionally, this removes several unnecessary <a> tags that are
duplicating existing IDs on <div> with widget-box class.

• View page:
  • Monitors section (#monitors)
  • Notes/Activities section (#bugnotes, #attachments)
  • Time tracking section (#bugnotestats)
  • History section (#history)
• Manage Tags page, Create Tag section (#tagcreate)
• Configuration Report page, Database Configuration section
• Language tests page, Plugins checks (add .test-langs tr selector)

Fixes 0021675