fix(style): see flickering in tooltip overflow dom

src/components/markdown-viewer/index.less

@@ -78,6 +78,7 @@
   table {
     width: 100%;
     margin-bottom: 1.2em;
+    font-size: var(--font-size-small);
 
     th {
       font-weight: var(--font-weight-bold);

src/components/overlay-scroller/index.tsx

@@ -32,6 +32,7 @@ const OverlayScroller: React.FC<any> = ({
   return (
     <Wrapper
       ref={scroller}
+      data-overlayscrollbars-initialize
       className="overlay-scroller-wrapper"
       $maxHeight={maxHeight || 200}
       hidden={false}