In D8285 we introduced a showSpinner prop to the Avatar component. In this diff we remove the LoadingIndicator from EditUserAvatar component and instead pass showSpinner down to Avatar to take advantage of that.
This deduplicates redundant spinner code. Now that we have a "toggleable" spinner in Avatar, components derived from it can use that spinner "for free."
Depends on D8285
For other tooltip actions we don't need to manually set this style. Can we use the mechanism we already have, or are there any reasons for not doing so?