fix: backport fix microsoft/vscode#270777

Author: Loïc Mangeonjean

vscode-patches/0082-fix-remove-empty-layout-message-before-actual-view-l.patch

@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Lo=C3=AFc=20Mangeonjean?= <loic@coderpad.io>
+Date: Fri, 10 Oct 2025 16:48:18 +0200
+Subject: [PATCH] fix: remove empty layout message before actual view layout
+
+to prevent a flicker when it opens
+---
+ src/vs/workbench/browser/parts/paneCompositePart.ts | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/src/vs/workbench/browser/parts/paneCompositePart.ts b/src/vs/workbench/browser/parts/paneCompositePart.ts
+index fda9c918852..0fb422fde45 100644
+--- a/src/vs/workbench/browser/parts/paneCompositePart.ts
++++ b/src/vs/workbench/browser/parts/paneCompositePart.ts
+@@ -232,15 +232,15 @@ export abstract class AbstractPaneCompositePart extends CompositePart<PaneCompos
+ 	}
+ 
+ 	protected override showComposite(composite: Composite): void {
++		this.layoutEmptyMessage(false);
+ 		super.showComposite(composite);
+ 		this.layoutCompositeBar();
+-		this.layoutEmptyMessage();
+ 	}
+ 
+ 	protected override hideActiveComposite(): Composite | undefined {
+ 		const composite = super.hideActiveComposite();
+ 		this.layoutCompositeBar();
+-		this.layoutEmptyMessage();
++		this.layoutEmptyMessage(true);
+ 		return composite;
+ 	}
+ 
+@@ -622,8 +622,7 @@ export abstract class AbstractPaneCompositePart extends CompositePart<PaneCompos
+ 		}
+ 	}
+ 
+-	private layoutEmptyMessage(): void {
+-		const visible = !this.getActiveComposite();
++	private layoutEmptyMessage(visible = !this.getActiveComposite()): void {
+ 		this.element.classList.toggle('empty', visible);
+ 		if (visible) {
+ 			this.titleLabel?.updateTitle('', '');