Don't use experimental decorators in extensions

Seeing if we can compile our extensions using TS native which doesn't support these. The usage is so low that I think we can just remove them

extensions/terminal-suggest/tsconfig.json

@@ -3,11 +3,9 @@
 	"compilerOptions": {
 		"outDir": "./out",
 		"esModuleInterop": true,
-		"experimentalDecorators": true,
 		"types": [
 			"node"
 		],
-
 		// Needed to suppress warnings in upstream completions
 		"noImplicitReturns": false,
 		"noUnusedParameters": false