[DMN Designer] DMN Decision Table - Input/Output clauses enhancements (UX)

Currently, the DMN Decision Tables input/output clauses work fine, but they have the following unpractical scenarios:

• When users have a structure input node "associated" with an input clause (input column), they frequently need to go back to the data types page and remember the name of some field.

• When users select a structure data type as the type of an output clause, they need to create sub-columns for each field manually.

The goal for this JIRA is to get input from UX to enhance interactions with input and output clauses.