Add pending state on API calls
Add pushPending/popPending pairs for all API calls, as well as a pushPending for the submit action (which doesn't need to pop because the dialog is closed at that point).
Bug: T360184
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Add pushPending/popPending pairs for all API calls, as well as a pushPending for the submit action (which doesn't need to pop because the dialog is closed at that point).
Bug: T360184