Send Cache-Control: no-cache for most routes

[fm3]

Adds Cache-Control: no-cache header to most routes.
Routes that go via the box-to-result codepath get it there.
Routes that don’t do that now have an explicit addNoCacheHeaderFallback wrapper.
Asset routes are not affected, neither are routes that already set the Cache-Control header in their implementation (e.g. thumbnail route)
Note that routes rejected by silhouette with 401 unauthenticated will not have the header set. But I assume no reasonable browser caches 401 responses anyway.

URL of deployed dev instance (used for testing):

• https://nocache.webknossos.xyz

Steps to test:

• In browser’s network tab, check that api responses have the header as expected, but asset responses don’t.

Issues:

• fixes Doublecheck cache control headers for dataset and annotation info request #6701

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• Needs datastore update after deployment