Update devcontainer.json

Author: eminence

.devcontainer/devcontainer.json

@@ -11,10 +11,10 @@
 
 	// Add the IDs of extensions you want installed when the container is created.
 	"extensions": [
-		"rust-lang.rust",
+		"matklad.rust-analyzer",
 		"bungcip.better-toml",
 		"vadimcn.vscode-lldb"
-	]
+	],
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],