🐛 Fix dashboard modal clipping behind sidebar (#9233)

Signed-off-by: RenzoMXD <170978465+RenzoMXD@users.noreply.github.com>

CHANGES.md

@@ -53,6 +53,7 @@
 
 ### :bug: Bugs fixed
 
+- Fix release notes modal appearing behind the dashboard sidebar [Github #8296](https://github.com/penpot/penpot/issues/8296)
 - Fix plugin API `fileVersion.restore()` promise hanging indefinitely on restore failure [Github #9092](https://github.com/penpot/penpot/issues/9092)
 - Fix imported stroke-only SVG paths losing their rounded join when authoring tools (e.g. Figma → Heroicons) split a continuous polyline into adjacent `M…L M…L` subpaths sharing an endpoint; on import these are now folded back into one chain so `stroke-linejoin` renders the elbow correctly in both editor and exports [Github #5283](https://github.com/penpot/penpot/issues/5283)
 - Fix plugin API `library.connectLibrary()` returning a non-Promise (or throwing synchronously) when the plugin lacks `library:write` permission — the method now always returns a `Promise` and rejects with a structured error message, matching the contract used by every other Promise-returning plugin method (`restore`, `remove`, `pin`, `saveVersion`, `findVersions`, …)

frontend/src/app/main/ui/dashboard/sidebar.scss

@@ -26,7 +26,7 @@
   margin: 0 var(--sp-l) 0 0;
   border-right: $b-1 solid var(--panel-border-color);
   background-color: var(--panel-background-color);
-  z-index: var(--z-index-dropdown);
+  z-index: var(--z-index-panels);
 }
 
 // SIDEBAR CONTENT COMPONENT