frontend: Fix findbugs method doesn't start with lower case

Fix findbugs method doesn't start with a lower case letter error in
frontend ListWithDetailsModel class methods InitDetailModels,
UpdateDetailsAvailability, ActiveDetailModelChanging,
ActiveDetailModelChanged, ProvideDetailModelEntity

Change-Id: I2996c077fc487d0cf300ca6cbd9defe6b85fee95
Signed-off-by: Tal Nisan <tnisan@redhat.com>