fix(CheckboxFilter): change checkbox gaps

src/shared/ui/CheckboxFilter/CheckboxFilter.svelte

@@ -110,7 +110,7 @@ const hasSelection = $derived(selectedCount > 0);
             class="border-t"
         >
             <div class="px-4 py-3">
-                <div class="flex flex-col gap-1.5">
+                <div class="flex flex-col gap-0.5">
                     <!-- Each item: checkbox + label with interactive hover/focus states -->
                     <!-- Keyed by property.id for efficient DOM updates -->
                     {#each properties as property (property.id)}