修改换行逻辑和段落查看方式

addon/content/icons/pane-adaptive-height.svg

@@ -1,11 +1,7 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="context-stroke" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-  <!-- Lucide: UnfoldVertical (adaptive on) -->
-  <path d="M12 22v-6"/>
-  <path d="M12 8V2"/>
-  <path d="M4 12H2"/>
-  <path d="M10 12H8"/>
-  <path d="M16 12h-2"/>
-  <path d="M22 12h-2"/>
-  <path d="m15 19-3 3-3-3"/>
-  <path d="m15 5-3-3-3 3"/>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Lucide UnfoldVertical, filled for Zotero toolbar buttons -->
+  <path d="M7.375 2.75h1.25v10.5h-1.25V2.75z" fill="context-fill"/>
+  <path d="M8 2.75 4.75 6h6.5L8 2.75z" fill="context-fill"/>
+  <path d="M8 13.25 4.75 10h6.5L8 13.25z" fill="context-fill"/>
+  <path d="M1.5 7.625h1.25v.75H1.5v-.75zm2.75 0h1.25v.75H4.25v-.75zm5.5 0H11v.75H9.75v-.75zm2.75 0h1.25v.75H13v-.75z" fill="context-fill" fill-opacity="0.82"/>
 </svg>