Translation Manager 18.5.0

Released 18.5.0, carrying the 17.11.0 fixes into v18
Bundled connector minimums raised to their latest v18 releases, so sites stop resolving older connectors
@jumoo/translate npm package ships its full types again (missing in 18.3.2 and 18.4.0)
v18 client generated with throwOnError, so failed API calls show an error instead of an empty result
Fix for null RTE markup when the source markup is empty, PR open (#172)