Translation Manager: connector fixes

Translation Manager v18: the bundled connector minimums are raised to their latest v18 releases (Google 18.0.1, AI 18.4.1, DeepL 18.2.0, Microsoft 18.2.1, Passthrough 18.0.1, Xliff 18.0.2)
Translation Manager: fixed a typo in the banner on an unconfigured connector's settings view
GlobalLink connector: the settings view returns empty lists instead of HTTP 500s before credentials are saved, and the connector name shows a three part version