LIMS-91: Load sample image if specified in URL

[ndg63276]

JIRA ticket: LIMS-91
JIRA ticket: LIMS-523

Summary:

If you go to a URL like /containers/cid/317254/iid/152920/sid/6049306, although the correct container (317254) and inspection (152920) are loaded, the sample (6049306) is not.
Also, caching the sample images is unnecessary with modern internet speeds.

Changes:

• Remove the preCache function and related variables
• Convert the sample id to a string before comparing to samples in the model

To test:

• Go to a proposal with plates (eg nt37104), then go to a container (eg /containers/cid/317254)
• Check images are not being cached but are still loaded when you click on a well on the plate
• Add an inspection id to the end of the URL, eg /iid/152920. Check the Inspections dropdown is showing the correct inspection (in this case, from 11/11/2024).
• Add a sample id to the end of that URL, eg /sid/6049306. Check the correct well from the plate is shown, in this case well 35.