LEAF 4258 orgchart group and position, fix report builder display when not found

[aerinkayne]

Orgchart group and orgchart position format questions can display incorrectly (false) or oddly (--) in the report builder if the group or position associated with the data entry is not found.

server-side:
Value that is set has been updated so that the Report Builder cells will display nothing if a group or position value is empty and 'group/pos #id no longer available' if it is not empty but the group/pos is not found by lookup. For positions, further lookups are also not completed if the initial position title lookup does not find a position.

front:
Adds some logic to form editing areas to avoid additional lookups if a position title is not found and displays 'position #id no longer available' instead of 'false' and a position card with a link to a broken page.

Testing / Impact
Report Builder
Cells for groups should not display 'false' if a group value is empty or no longer available.
Cells for positions should not display (--) if a position is no longer available.

Form Editing areas
Position value should not display 'false' and a broken link if a position is no longer available.