fix(workspaces): Notify theme picker when workspace has synced

This commit updates the workspace sync logic to notify the theme picker when the active workspace changes.

This ensures that the theme picker can update its state and display the correct theme for the current workspace.

src/ZenWorkspaces.mjs

@@ -65,6 +65,9 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
           lastChangeTimestamp > this._workspaceCache.lastChangeTimestamp
         ) {
           await this._propagateWorkspaceData();
+
+          const currentWorkspace = await this.getActiveWorkspace();
+          await gZenThemePicker.onWorkspaceChange(currentWorkspace);
         }
       } catch (error) {
         console.error('Error updating workspaces after sync:', error);