fix(desktop): adjust ui tool diff sticky header offset (#23149)

packages/ui/src/components/message-part.tsx

@@ -1269,7 +1269,7 @@ function ToolFileAccordion(props: { path: string; actions?: JSX.Element; childre
     <Accordion
       multiple
       data-scope="apply-patch"
-      style={{ "--sticky-accordion-offset": "40px" }}
+      style={{ "--sticky-accordion-offset": "calc(32px + var(--tool-content-gap))" }}
       defaultValue={[value()]}
     >
       <Accordion.Item value={value()}>
@@ -2061,7 +2061,7 @@ ToolRegistry.register({
                 <Accordion
                   multiple
                   data-scope="apply-patch"
-                  style={{ "--sticky-accordion-offset": "40px" }}
+                  style={{ "--sticky-accordion-offset": "calc(32px + var(--tool-content-gap))" }}
                   value={expanded()}
                   onChange={(value) => setExpanded(Array.isArray(value) ? value : value ? [value] : [])}
                 >