Bug 34398: Fix inconsistencies in Record matching rules page titles, breadcrumbs...

Bug 34398: Fix inconsistencies in Record matching rules page titles, breadcrumbs, and headers

This patch fixes some inconsistencies in the record matching rules
administration page, making sure the page title, breadcrumb
navigation, and page headers are consistent with each other.

Some controls on this page have been updated to use Bootstrap link style
with Font Awesome icons added.

Test each page to confirm that page title, heading, and breadcrumbs are
consistent:

- Administration -> Record matching rules
  - New record matching rule
  - Edit record matching rule
  - Delete record matching rule
  - Test the process of adding new match points and new match checks,
    and removing match points and match checks.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 6cce6f9e1c1c3cc7697da15793fe99453115bd66)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>