[DMN Designer] Boxed Expressions - Enhance component title

Improve the boxed expression title.

• Rename "<< Back to <NODE_NAME>" ("<< Back to Decision-1") to just "<< Back"

• Rename "<BOXED_EXPRESSION_TYPE>" ("Decision Table") to "<NODE_NAME> (<BOXED_EXPRESSION_TYPE>)" ("Decision-1 (Decision Table)")

⚠️ Notice: Check the latest Liz mockup for this task.

Manual acceptance tests

• Switch between many nodes in a row
• Rename node