Replace term "social account" with "third-party account"

Also, replace "3rd" with "third".

added part::frontend prio::2 type::bug labels

changed title from Replace social account by third party account to Replace term "social account" with "third-party account"

changed the description

created merge request !644 (merged) to address this issue

assigned to @yuha

mentioned in merge request !644 (merged)

added board::ready label

mentioned in commit cfc9bf8d

closed with merge request !644 (merged)