Provide quicker user feedback when starting an index operation #212
Description
When the Album Manager user interface first loads, it takes a while to iterate through all the albums and collect their size and other metadata. During this period of time, if the user clicks on one of the "Update Index" buttons, nothing seems to happen until that album's metadata is loaded.
I would like for the user interface to respond immediately, for example by changing the label of "Update Index" to "Update Pending..." during the period of time before indexing actually begins.