Bug 34802: Improve translation of title tags: Tags and comments

Bug 34802: Improve translation of title tags: Tags and comments

This patch modifies tag and comments management templates so that title
tags can be more easily translated. The patch also makes some
modifications to titles, breadcrumb navigation, and page headers in
order to make them more consistent with each other and with other
similar pages.

To test, apply the patch and go to Tools. Test each of the following
pages and each variation of the page to confirm that titles,
breadcrumbs, and page headers look correct.

- Tags
  - Main page
    - Viewing tags by status: Approved, pending, and rejected (link in
      the right-hand column)
  - List of records by tag
    - This page has been modified so that the menu of tag link in the
      left-hand sidebar is styled consistently with other sidebar menus.
- Comments
  - Approved comments
  - Comments awaiting moderation

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>