Render most relevant role to user.
Remove 'References' from mappings and selectors
Merge pull request #750 from reciprocity/feature/remove-mapped-references

Remove 'References' from mappings and selectors
PEP-8 fixes and `show-role` class causing bad layout
Merge pull request #749 from reciprocity/feature/add-system-roles-5

Show system role in dropdown #61944936 (redo)
Merge branch 'develop' into feature/update-audit-permissions