Fix: BlurNsfw not blurring embeds

[rynmy]

Closes #2837

demo:

[Nuckyz]

Isn't this just a fix of an already existing feature?

[rynmy]

Isn't this just a fix of an already existing feature?

yeah, though the issue is labeled as a feature request. which should i follow?

[rynmy]

Regex comparison:
old: \.embedWrapper(?=.+?channel_id:(\i)\.id) [.1-.2ms query]
current commit: \.container [.1-.2ms query]

other soln's:
(?<=Invite\(t,\s*(n)\).+?)\.container [~201.8ms query] (+ positive lookbehind may not be supported, + non-fixed)
Invite\(t,\s*(n)\).+?\.container[.2-.5ms query]