build: correct codespaces devcontainer extensions settings (#39123)

.devcontainer/devcontainer.json

@@ -4,8 +4,34 @@
 	"onCreateCommand": ".devcontainer/on-create-command.sh",
 	"updateContentCommand": ".devcontainer/update-content-command.sh",
 	"workspaceFolder": "/workspaces/gclient/src/electron",
-	"extensions": [
+	"forwardPorts": [8088, 6080, 5901],
-		"joeleinbinder.mojom-language",
+	"portsAttributes": {
+		"8088": {
+			"label": "Goma Control Panel",
+			"onAutoForward": "silent"
+		},
+		"6080": {
+			"label": "VNC web client (noVNC)",
+			"onAutoForward": "silent"
+		},
+		"5901": {
+			"label": "VNC TCP port",
+			"onAutoForward": "silent"
+		}
+	},
+	"hostRequirements": {
+		"storage": "128gb",
+		"cpus": 16
+	},
+	"remoteUser": "builduser",
+	"customizations": {
+		"codespaces": {
+			"openFiles": [
+				".devcontainer/README.md"
+			]
+		},
+		"vscode": {
+			"extensions": ["joeleinbinder.mojom-language",
 				"rafaelmaiolla.diff",
 				"surajbarkale.ninja",
 				"ms-vscode.cpptools",
@@ -34,32 +60,7 @@
 				},
 				"javascript.preferences.quoteStyle": "single",
 				"typescript.preferences.quoteStyle": "single"
-	},
+			}
-	"forwardPorts": [8088, 6080, 5901],
-	"portsAttributes": {
-		"8088": {
-			"label": "Goma Control Panel",
-			"onAutoForward": "silent"
-		},
-		"6080": {
-			"label": "VNC web client (noVNC)",
-			"onAutoForward": "silent"
-		},
-		"5901": {
-			"label": "VNC TCP port",
-			"onAutoForward": "silent"
-		}
-	},
-	"hostRequirements": {
-		"storage": "128gb",
-		"cpus": 16
-	},
-	"remoteUser": "builduser",
-	"customizations": {
-		"codespaces": {
-			"openFiles": [
-				".devcontainer/README.md"
-			]
 		}
 	}
 }