Bug 4461: Manage problem reports on the staff client

Bug 4461: Manage problem reports on the staff client

Test plan:

- Update database and upgrade schema files (if you haven't already).
Restart memcached
- Check your user's permissions and ensure the 'problem_reports'
permission is ticked. Confirm the OPACReportProblem syspref is enabled
- Log into the OPAC and submit a problem report
- Log into the staff client
- You should see a box at the bottom of the main page showing your
pending problem report
- Click the link and confirm it takes you to the new page for managing
problem reports
- Go to Administration
- Confirm you can see a link to 'OPAC problem reports' under the
'Additional parameters' heading
- Click 'OPAC problem reports'
- Confirm your problem report is showing in the table
- Open the OPAC in another tab and submit at least two more problem
reports (so you should have at least three in the table after
refreshing)
- Try the different buttons
    - selecting multiple problem reports and using the big 'mark
    viewed', 'mark closed', 'mark new' buttons. Confirm there are no
    failures and that the number of selected problem reports is correct
    - select all, clear all, hide viewed, hide closed, hide new, show
    all
    - individual 'mark viewed', 'mark closed', 'mark new' buttons for
    each problem report. Confirm the status shows and the correct button
    is disabled while others are enabled
- Confirm the problem page link works as expected

Sponsored-by: Catalyst IT
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>