Swap Component Type with Slot Type for link valitation

[chrisfls]

Summary

Components.Type is wrongly used to validate component<->slot matching, but this is wrong, component types should only be used to categorize inventory entries.

No work was done on that before because 99% of the slot types have the same name as the component type, but we'll have to change it in the future.

Proposal

• Modify: Components.Type => String
  • And localize the name using our future translation mechanism.
• Add: SlotType, this thing will replace component type for validation.

Reasoning

There are multiple types of HDD slots: sata / nvme, we're not using nvme yet, but we need to prepare for that.

Keep this issue low priority until campaign is almost ready.