TM.AI 17.7.4 and 18.4.2, @jumoo/translate-ai on npm

Released 17.7.4 and 18.4.2
Client types published to npm as @jumoo/translate-ai from the release workflows, latest-17 for v17 and next-17 for nightlies (#75)
18.4.2: requires Translation Manager 18.4.0+, client built against @jumoo/translate 18.5.0 from npmjs.org (#74)
v17/main merged forward into v18/main (#77)