Fixes #173 by refreshing GalleryPanel when items are changed
Fixes #173 by refreshing GalleryPanel when items are changed

Cubey2019/Fluent.Ribbon,fluentribbon/Fluent.Ribbon,mokeev1995/Fluent.Ribbon,robertmuehsig/Fluent.Ribbon,abdelkarim/Fluent.Ribbon,punker76/Fluent.Ribbon,chrfin/Fluent.Ribbon,huoyaoyuan/Fluent.Ribbon,fluentribbon/Fluent.Ribbon,dady8889/Fluent.Ribbon