fix(GlAvatar): properly validate size prop
What does this MR do?
In !2102 (merged) we introduced some custom logic in GlAvatar
's size
prop validator to log a more helpful error message when the provided size is invalid. A conditional was unfortunately reversed, which resulted in errors being thrown for any valid value. This addresses the issue.
Closes #1362 (closed)
Edited by Paul Gascou-Vaillancourt