Introduce margin between grid item title(s) and details

src/ui/components/media_grid_item/film_grid_item.rs

@@ -97,6 +97,7 @@ impl FactoryComponent for FilmGridItem {
             set_spacing: 20,
             set_halign: Align::Center,
             set_orientation: Orientation::Horizontal,
+            set_margin_top: 10,
 
             #[name="release_date"]
             Label {

src/ui/components/media_grid_item/series_grid_item.rs

@@ -94,6 +94,7 @@ impl FactoryComponent for SeriesGridItem {
 
           #[name="release_date"]
           Label {
+            set_margin_top: 10,
             set_label: self.series.first_release_date.split('-').next()
               .expect("series first release date format should be YYYY[-MM[-DD]]"),
           },