oncogenic, likely oncogenic clinical significance icon issues

[jmcmichael]

It looks like at some point the icons for oncogenic Clinical Significance were mis-specified in the significance-select field and maybe the attribute tag.

Oncogenic Clinical Significance has its own icon which should be displayed in the attribute tags:

Also Likely Oncogenic has its own icon, which isn't displayed in significance-select:

The icon library is throwing console errors indicating it can't find the icon, there might have been a regression with the icon files.

[@ant-design/icons-angular]:the icon civic-likelyoncogenic-o does not exist or is not registered.