Revert "libraries/prompter: Fix resolve-selection with marked-candidates."
Revert "libraries/prompter: Fix resolve-selection with marked-candidates."

This reverts commit da2f3af4922a4642c411c99da820ec3c49890742.

This fix is wrong: Nyxt should insert suggestions and not values in marked-suggestions.

jmercouris/NeXT,jmercouris/NeXT