fixes GRO-25
Updated @tryghost/nql to 0.12.0 and other packages that depend on it
1. SQLite: when a filter string contains /.
When we use a NQL contain/starts/endsWith filter that contains a slash,
underlyingly the whole filter will get converted to a MongoDB query, in
which we just use a regexp to represent the filter. In here we will
escape the slash: \/ as expected in a regexp. Later when we convert this
MongoDB query back to knex/SQL, we use a SQL LIKE query. Currently we
don't remove the escaping here for a normal slash. MySQL seems to ignore
this (kinda incorrect). SQLite doesn't like it, and this breaks queries
on SQLite that use slashes. The solution here is simple: remove the
backslash escaping when converting the regexp to LIKE, just like we do
with other special regexp characters.
2. We don't escape % and _, which have a special meaning in LIKE queries
Usage of % and _ is now as expected and doesn't have the special SQL
meaning anymore.
e5f644c27f