imply dagger -> knife

BUR #5585 has been approved by @evazion.

create implication dagger -> knife

This has always puzzled me. A dagger is a knife.
Nobody will ever follow the definition of the wiki that daggers must be double-edged, there's so many cases where that's impossible to tell (sheaths, the fact that most artists don't bother to draw the edge of the blade, etc) that the mutually exclusive distinction makes zero sense to me.

"Daggers" are combat knives, and that's what they're tagged as. Obviously combat knives are still knives.

-1 on the alias. You'll lose the implication to holding_weapon with that.

BrokenEagle's point on the implication makes me disagree with it. I wouldn't want to implicate kitchen knives, butter knife, etc. to holding weapon.

The wiki probably needs a bit of a rewrite to include proper identifiers rather than the wishy-washy one we have now. You can identify daggers by their shape and whether or not they have a guard, not just their edge. rice_shower_(umamusume) carries a dagger. Despite it never being shown out of the sheath, you can call it a dagger by the shape alone. In something like post #4530155, that's a rondel on his belt. It may not have an edge at all. But it's classified as a dagger due to the guard.

Basically, like I always say:
Weapon and armor tags are jank as hell.

Removed the alias.

We already treat other things like kukris as knives. It's probably easiest to treat knife as an umbrella tag for all short bladed tools or weapons.

The bulk update request #5585 (forum #186684) has been approved by @evazion.