more shared snippets

.vscode/shared.code-snippets

@@ -24,6 +24,19 @@
 		],
 		"description": "Insert Copyright Statement"
 	},
+	"TS -> Inject Service": {
+		"description": "Constructor Injection Pattern",
+		"prefix": "@inject",
+		"body": "@$1 private readonly _$2: ${1},$0"
+	},
+	"TS -> Event & Emitter": {
+		"prefix": "emitter",
+		"description": "Add emitter and event properties",
+		"body": [
+			"private _onDid$1 = new Emitter<$2>();",
+			"readonly onDid$1: Event<$2> = this._onDid$1.event;"
+		],
+	},
 	"CSS Copyright Header": {
 		"scope": "css",
 		"prefix": [