refactor(styles): disable immersive tabbar feature and adjust padding

- Remove immersive tabbar feature by commenting out in index.scss
- Adjust padding-top for .protyle-content to remove potential scroll issues

styles/features/immersive-tabbar.scss

@@ -79,8 +79,7 @@ body.asri-immersive-tabbar:not(.asri-disable-backdrop-blur) {
             }
 
             :not(#searchPreview)>.protyle-content {
-                padding-top: var(--blur-block-height); // 可能是导致滚动相关问题的原因
-            }
+                padding-top: var(--blur-block-height); 
 
             &>.file-tree .protyle-content {
                 padding-top: 0 !important;

styles/features/index.scss

@@ -13,7 +13,7 @@
 @use 'overflow-indicator';
 @use 'list-counter-style';
 @use 'reading-mode';
-@use 'immersive-tabbar';
+// @use 'immersive-tabbar';
 @use 'rtl';
 @use 'selected-block-indicator';
 @use 'hide-side-panel-block-icons';