fix: show warning for less only when the project has nativescript-dev-less plugin as dependency
fix: show warning for less only when the project has nativescript-dev-less plugin as dependency

NathanaelA/nativescript-cli,NativeScript/nativescript-cli,NativeScript/nativescript-cli,NathanaelA/nativescript-cli,NativeScript/nativescript-cli,NathanaelA/nativescript-cli,NativeScript/nativescript-cli,NathanaelA/nativescript-cli