Caching

[RyanTG]

Issue for discussing caching strategies.

WIP here for caching LMXs: https://github.com/pinballmap/pbm/pull/1523

I need to check that the updated_at is being updated when IC is toggled.

Other potential cacheable items:

Every time the mobile app opens, it pulls these 5 endpoints. The first 4 rarely change and so might be good candidates for perhaps Low-Level Caching:

          getRegions("/regions.json"),
          getLocationTypes("/location_types.json"),
          getMachines("/machines.json"),
          getOperators("/operators.json"),
          getLocationAndMachineCounts(
            "/regions/location_and_machine_counts.json",

• Regions endpoint
• Location Types endpoint
• Machines endpoint
• Operators endpoint