Blogger standardization

BUR #57313 is pending approval.

rename blogger -> blogger_(site)
create alias blogspot -> blogger_(site)
create alias blogspot_username -> blogger_username
create alias bad_blogspot_id -> bad_blogger_id

topic #35499 has rehighlighted an issue that's been left unsolved - the inconsistency in names for Blogger. As evazion noted;

evazion said in forum #429284:

Blogger is the official name of the site.

https://en.wikipedia.org/wiki/Blogger_(service)
http://blogger.com

But Danbooru's so old tags on Blogger predate its current name. So this is to standardize things, reversing the alias from BUR #24446 above all else.

blogger imo is too ambiguous. Nowadays it just means "someone who blogs", you'd be pressed to find a zoomer that knows about the original site.

Added an extra line renaming the main tag to add the qualifier (site). This made me realize we had a few tags that were qualified (website) instead of (site)... should probably BUR those too.

BUR #58533 is pending approval.

rename blogger -> blogspot
create alias blogger_(site) -> blogspot
create alias bad_blogger_link -> bad_blogspot_link

At the risk of being technically wrong, I'm just going to propose moving this to the more widely known term. Even blogger username nowadays is extremely ambiguous and could just mean artist name or signature.

If we're being technically wrong for clarity purposes, what does that mean for the VK/Vkontakte discussion (forum #426987)?

I just noticed from peeking at that topic that now we have the asymmetry of bad vk link but bad vkontakte id, lol. topic #33465 is also mildly relevant. Confusing reply of mine aside, in my opinion, after thinking about it for a minute, I'd be down to standardise the rest of the tags to just "VK".

I think specifically blogger username might make it kind of difficult to use blogger as the main name since that sounds pretty generic. In practice it might be fine but I'd maybe expect the occasional tumblr-related mistag.

BUR #58590 is pending approval.

create alias vk_username -> vkontakte_username
create alias bad_vk_link -> bad_vkontakte_link

Well, vkontakte does not have the issue of ambiguity.