Add web files required by rosie disco (only)

[sadielbartholomew]

I've traced the single test failure in metomi#2357 to a lack of HTML, CSS & JS files required by the Rosie Disco Service when it runs in the browser, as standard (see metomi#2355 (comment)). These were removed from the master (Rose 2) branch during metomi#2318.

This PR re-adds the directories & the required web files as in the current 7.8.x branch, excluding those explicitly referencing Rose Bush.

Since only the full directory is explicitly referenced to be read:

https://github.com/metomi/rose/blob/a2309eb25e6768d9c0628d9da75e1f3adb9f91b5/lib/python/rosie/ws.py#L135-L136

... I am not sure of a way to determine which files under lib/html/static/ are used by Rosie Disco Service & which were used only by Rose Bush, so the latter can be removed. Any ideas on how to filter out such Rose Bush files so I can remove them from this PR? Otherwise, I think for not we should just re-add everything under static/, as we may well be adjusting the front-end soon, so I am not sure it is worth too much effort to manually trawl through these.

[oliver-sanders]

I am not sure of a way to determine which files under lib/html/static/ are used by Rosie Disco

Most of these are bundled files which it would be good to get out of the library, we can remove them from ACKNOWLEDGEMENT.md in the process.

From a quick pass, I think these aren't necessary for Rosie Disco:

DataTables

This file we are using:

• lib/html/static/css/jquery.dataTables.css

The others we are not:

• lib/html/static/css/jquery.dataTables.!(css)*
• lib/html/static/js/dataTables*

($ git grep dataTables -- lib/html/template/)

Code Highlighting:

• lib/html/static/css/prettify.css
• lib/html/static/js/lang-*
• lib/html/static/js/prettify*

Other

• lib/html/static/rose-favicon.png
• lib/html/static/js/search.js

[sadielbartholomew]

Thanks @oliver-sanders, I'll get those removed.