fix(header): fixed padding header buttons

This matches the custom header buttons to other header bar buttons and prevents the buttons being cut off when Spacious density is used, and makes them easier to click when Compact.

src/app.rs

@@ -3251,6 +3251,7 @@ impl Application for App {
         } else {
             elements.push(
                 widget::button::icon(widget::icon::from_name("system-search-symbolic"))
+                    .padding(8)
                     .on_press(Message::SearchActivate)
                     .into(),
             )

src/menu.rs

@@ -283,7 +283,8 @@ pub fn dialog_menu<'a>(
             widget::button::icon(widget::icon::from_name(match tab.config.view {
                 tab::View::Grid => "view-grid-symbolic",
                 tab::View::List => "view-list-symbolic",
-            })),
+            }))
+            .padding(8),
             menu::items(
                 key_binds,
                 vec![
@@ -305,7 +306,8 @@ pub fn dialog_menu<'a>(
                 "view-sort-ascending-symbolic"
             } else {
                 "view-sort-descending-symbolic"
-            })),
+            }))
+            .padding(8),
             menu::items(
                 key_binds,
                 vec![