stkTeaserOpener dialog needs i18nBasename property (which should equal info.magnolia.module.templatingkit.messages).

Its label's i18n key is correct, but without the i18nBasename property, the proper label which is "Teaser Opener" cannot be fetched.

This causes the name to fallback to the form sub-node's label property, which is "Teaser" and is not as correct.