fix(desktop): refresh stale 4px scrollbar-width comments to 8px

apps/desktop/src/components/pane-shell/tree/renderer/tree-split.tsx

@@ -764,7 +764,7 @@ function Sash({
       className={cn(
         'group absolute z-20 [-webkit-app-region:no-drag]',
         // Asymmetric grab band: only 1px reaches into the leading pane so its
-        // edge-hugging 4px scrollbar stays clickable (the old centered 9px band
+        // edge-hugging 8px scrollbar stays clickable (the old centered 9px band
         // swallowed it entirely — the pointer got col-resize instead of the
         // thumb). The trailing side keeps a generous 7px reach; total grab
         // width stays ~8px so the sash is no harder to hit.

apps/desktop/src/styles.css

@@ -1360,7 +1360,7 @@ body.guest-pointer-lock :is(webview, iframe) {
      platform overlay (fade in on scroll, zero gutter) to classic always-on
      gutters. `.scrollbar-overlay` opts a surface out of the themed rules so
      Electron keeps native overlay — used by conversation code blocks where a
-     permanent 4px track eats the card and always draws a bar. */
+     permanent 8px track eats the card and always draws a bar. */
 
   .scrollbar-dt::-webkit-scrollbar,
   .scrollbar-dt *:not(.scrollbar-overlay)::-webkit-scrollbar {