etherpad ID length limit of 50 chars

[markmacgillivray]

etherpad only allows 50 characters in a pad ID - so at the moment any longer URL than that on the frontend is just being truncated to 50. but longer term this could lead to clashes, so should perhaps add a limiter to the length of URL a person can provide, or alternatively don't use relatable IDs for the etherpads - e.g. just use a uuid or something and track it.

this may also become relevant when we consider moving pages - should they use an ID that relates to their URL at all?

[markmacgillivray]

they now use uuids.