LIMS-1554: Add 'State' column to proposals list page

[ndg63276]

JIRA ticket: LIMS-1554

Summary:

Users are sometimes unclear which proposal they should use, so we should make clearer which ones are closed.

Changes:

• Add a 'State' column to the proposals list page to display 'Open' or 'Closed'
• Add a new config variable $closed_proposal_link, which, if set, adds a 'Click for more info' link to the top of the main menu when a closed proposal is used.

To test:

• Go to the proposals list, check there is a 'State' column, with 'Open' for eg mx34263 and 'Closed' for eg mx10627
• Check clicking on the column header sorts by proposal state
• Choose a closed proposal, hover over the main menu, check a warning appears saying "This proposal is closed. You cannot create shipments, proteins or contacts."
• Add a config variable $closed_proposal_link = 'https://www.diamond.ac.uk';, refresh the page, check that a link for more info works and takes you to the same URL (the real page is still to be written)
• Go to an open proposal, check the warning and link are not displayed.