cell nucleus phenotype - descendant term labels and defintions

[anna-anagnostop]

Some descendant terms of 'cell nucleus phenotype' need to have their labels modified to clearly indicate they specifically refer to the cell nucleus (not other types of nucleus terms like brain nuclei), likely reflecting unspecified use of nucleus in GO.

Examples noted include:

morphology of nucleus phenotype --> morphology of cell nucleus phenotype
nucleus organization phenotype --> cell nucleus organization phenotype
nucleus localization phenotype --> cell nucleus localization phenotype
absent nucleus --> absent cell nucleus
rotated nucleus --> rotated cell nucleus

If we inject 'cell' into the labels of these nucleus terms, we should also inject 'cell nucleus' into their definitions.