As a user, I want small changes to the Concept and Concept relations tabs.

1 - Rename the "Concept Metadata" tab to "Concept Overview"
2 - Rename the "Concept Relationships" tab to "Relationships
3 - Revise the columns of the Parents table on the Relationship tab
3a - Move the "Label" column to the leftmost position
3b - Rename the "Label" column to "Title"
3c - Remove the "PID" column
3d - Create a new column called "Type" in the rightmost position (still total two columns)
3e. - Put the concept type in the right column