Fix multiple strings in translations (|, space, CC, markdown, ...)

This removes one "|" in strings so only one "|" exists per string.

This adds missing space in "for%{term_element}".

This changes "CC" to "Credit Card". So translators don't have to figure out what "CC" is.

This changes "markdown" to "Markdown".

Remove "* * * * *" from translation. Seems this is never translated into something else.

Remove 3 spaces from " %{name}, confirm your email address now! " making it identical with an already existing string.

Remove extra spavce in "check out %{notificationLinkStart} notification emails%{notificationLinkEnd}".

Closes #340195 (closed), #340138 (closed), #340133 (closed), #340129 (closed), #340675 (closed), #341196 (closed)