LIMS-42: Minor speedup of _get_all_containers

[ndg63276]

JIRA ticket: LIMS-42

Summary:

Getting a list of all containers for a proposal can be slow as there is a large number of joins needed. We have previously sped up the counting query, but there are still minor improvements that can be done to the main query.

Changes:

• Only do the second join to ContainerInspection if looking at a specific container, not for the list of all containers
• Don't get lastqueuedwell as it is not used anywhere and does take a little time
• Clean up the list of fields that can be used to sort
• Tidy up the columns queried, grouping them by table as much as possible

To test:

• Go to a proposal with both plates and pucks, eg nr29467, and go to /containers
• Check the table loads, and clicking on each column header sorts by that column
• Check each filter at the top works (some of them might give no results)
• Click on a particular plate, check the page loads ok, including the button saying "Request Plate Imaging" (this might not appear if someone has recently requested imaging, but that is unlikely)
• Go back to /containers and then click on a particular puck, check the page loads ok
• Go to /admin/imaging and check the Containers table works there as well