The Cordova Plugin Discovery wizard has "plugin" as one word.

There are two common spellings of this word: plugin and plug-in.

Within Red Hat content services we follow the IBM style guide. It states that the hyphenated version should be used, so "plug-in". Therefore I suggest changing the instances within the wizard header, title and info text to "plug-in". [I realise this is contrary to the usage by Cordova and Phonegap docs sites.]

I guess that the descriptions for the individual plug-ins is being drawn from a Cordova registry so don't worry about these. Likewise the use of "plugin" within the plugin package id is also exempt.