[#52312751] User can print off plate pages

Added print @media css files which produce nice
summary sheets showing pooling information.
Pool colour styles added on summary page. (Doesn't
affect screen rendering)
[#52312751] Hide samples-information

The samples information box is not needed
Merge pull request #23 from JamesGlover/52312751_front_page_should_be_printable

52312751 front page should be printable
[fixes #54206094] Add repeats as final pooling classes
Merge pull request #24 from JamesGlover/54206094_pcrr-xp_plates_dont_worl

[fixes #54206094] Add repeats as final pooling classes