source: Reorder AllowSource switch Statement and Comment Nits
source: Reorder AllowSource switch Statement and Comment Nits

The AllowSource method contains logic that maps the
hierarchical sources of truth for when an entity's existing
source allows a new source of truth to overwrite it.

The method was written so that the cases were not in the order
of their importance, which makes the method confusing to read.
Additionally there were some typos and incorrectly worded comments
that further make the method difficult to read.

Signed-off-by: Nate Sweet <6e86808f393e1310ee2d93bf774535aa7e8640d9@pm.me>

tgraf/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,tklauser/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,tgraf/cilium,tklauser/cilium,tklauser/cilium