added TSLint for TypeScript code style checking, fixed associated errors

tsconfig.json

@@ -1,22 +1,17 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
-    "jsx": "react",
     "module": "commonjs",
     "outDir": "./build/",
     "target": "es5",
     "lib": ["es2017", "dom"],
     "experimentalDecorators": true,
-    "sourceMap": true,
-    "paths": {
-      "sass/*": ["./static/css/directives/components/pages/*"]
-    }
+    "sourceMap": true
   },
   "exclude": [
     "node_modules"
   ],
   "include": [
-    "./static/js/**/*.tsx",
     "./static/js/**/*.ts"
   ]
 }