alias golden_ratio -> golden_spiral

BUR #14408 has been approved by @nonamethanks.

create alias golden_ratio -> golden_spiral

Two tags for the same thing.

There is also fibonacci sequence.

I would either alias golden ratio to fibonacci sequence, and make it a tag to cover appearances of the numerical sequence (post #2429566), or make golden ratio an umbrella tag for golden spiral and fibonacci sequence.

Either way, in golden spiral only the spiral can be tagged, not the numerical sequence.

Only six posts, I moved them by hand.

The bulk update request #14408 (forum #230353) has been approved by @nonamethanks.

It probably makes more sense to keep fibonacci sequence for the actual numbers and golden spiral for the graphical representation, given that otherwise the tag would overlap fully save for one or two posts, and given the rarity of the numbers being represented, compared to the much more popular spiral.

I'm neutral on whether ratio or spiral should be the main tag, but I aliased them for now because both should lead to the same thing.

Just realized we also have golden rectangle. Maybe both that and golden spiral should be aliased to golden ratio?