Improve data refresh

We can be smarter about data refresh:

• Some endpoints do not need any refresh: instrument list, dataset files, dmp...
• Some endpoints need rare refresh: investigation list, investigation users, ids status?...
• Some endpoints need frequent refresh: dataset list, sample list...

Some specific cases could even have a smart refresh rate:

• dataset list for an investigation:
  • frequent refresh if investigation is ongoing
  • slow refresh if investigation is over
• logbook for an investigation:
  • frequent refresh if investigation is ongoing
  • no refresh if investigation is over