perf(settings): coalesce refreshes and cache resize previews

shell/ferese-settings/src/scroll_tests.rs

@@ -79,6 +79,7 @@ fn panel_preview_stays_visible_while_the_items_editor_scrolls() {
             "/unused/editor.kdl".into(),
             Snapshot::parse(String::new()),
             None,
+            None,
         ),
     )
     .0;
@@ -185,6 +186,7 @@ fn appearance_scroll_preserves_progress_and_settles_visibility() {
                     PathBuf::from("/unused/scroll-test.kdl"),
                     Snapshot::parse(source),
                     None,
+                    None,
                 ),
             )
             .0;
@@ -459,6 +461,7 @@ fn gpu_panel_text_survives_preview_clipping_and_scrolling() {
                         "/unused/panel-text.kdl".into(),
                         Snapshot::parse("theme { mode dark; family \"ferese-blue\"; }".into()),
                         Some(InitialPage::Bar),
+                        None,
                     ),
                 )
                 .0;
@@ -652,6 +655,7 @@ fn render_panel_review_states() {
             "/unused/review.kdl".into(),
             Snapshot::parse(String::new()),
             Some(InitialPage::Bar),
+            None,
         ),
     )
     .0;
@@ -899,6 +903,7 @@ fn selecting_panel_items_preserves_editor_scroll_and_pane_bounds() {
                 "/unused/layout.kdl".into(),
                 Snapshot::parse(String::new()),
                 Some(InitialPage::Bar),
+                None,
             ),
         )
         .0;
@@ -1002,6 +1007,7 @@ fn sidebar_collapses_at_the_breakpoint_and_compact_navigation_dismisses() {
             "/unused/sidebar.kdl".into(),
             Snapshot::parse(String::new()),
             Some(InitialPage::Bar),
+            None,
         ),
     )
     .0;
@@ -1121,6 +1127,7 @@ fn appearance_cards_reflow_without_overlap_and_keep_every_destination() {
             "/unused/overview.kdl".into(),
             Snapshot::parse(String::new()),
             None,
+            None,
         ),
     )
     .0;
@@ -1232,6 +1239,7 @@ fn sidebar_rows_center_inside_the_full_button_hit_area() {
             "/unused/navigation-centers.kdl".into(),
             Snapshot::parse(String::new()),
             None,
+            None,
         ),
     )
     .0;
@@ -1305,6 +1313,7 @@ fn double_clicking_blank_edges_toggles_maximize_without_changing_settings() {
             "/unused/edge-gesture.kdl".into(),
             Snapshot::parse(String::new()),
             Some(InitialPage::Settings(Page::General)),
+            None,
         ),
     )
     .0;
@@ -1397,6 +1406,7 @@ fn holiday_function_editor_keeps_state_when_focus_and_text_rebuild_the_page() {
             "/unused/calendar-editor.kdl".into(),
             Snapshot::parse(String::new()),
             Some(InitialPage::Settings(Page::Calendar)),
+            None,
         ),
     )
     .0;