The bulk update request #11877 has been approved by @evazion.
create alias eye_of_wdjat -> eye_of_horus
create alias eye_of_wadjet -> eye_of_horus
create alias eye_of_wedjat -> eye_of_horus
rename wadjet -> wadjet_(mythology)
The "Eye of Horus" symbol were also well-known by the name of the "Eye of Wdjat", with numerous spelling variations. To clarify that they were the same symbol, I think an alias should be added to the main Eye of Horus tag.
Edit: added a "mythology" qualifier for Wadjet tag since it's a tag for generic depiction of the Egyptian goddess of the same name, and to avoid the confusion with the symbol.